According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an     authenticated user to potentially enable denial of service via local access. (CVE-2021-33061)

  - When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
    (CVE-2021-33656)

  - In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to     a race condition. This could lead to local escalation of privilege with no additional execution privileges     needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid     ID: A-200688826References: Upstream kernel (CVE-2021-39686)

  - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the     small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of     service problem. (CVE-2022-1012)

  - A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a     local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device     is detached and reclaim resources early. (CVE-2022-1195)

  - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency     use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker     could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the     system. (CVE-2022-1652)

  - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP     pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)

  - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged     user to gain root privileges. The bug allows to build several exploit primitives such as kernel address     information leak, arbitrary execution, etc. (CVE-2022-1729)

  - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use     after free both read or write when non synchronized between cleanup routine and firmware download routine.
    (CVE-2022-1734)

  - With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID     is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
    (CVE-2022-1789)

  - There is a sleep-in-atomic bug in /net/nfc/netlink.c that allows an attacker to crash the Linux kernel by     simulating a nfc device from user-space. (CVE-2022-1975)

  - In various functions of the USB gadget subsystem, there is a possible out of bounds write due to a missing     bounds check. This could lead to local escalation of privilege with no additional execution privileges     needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid     ID: A-213172319References: Upstream kernel (CVE-2022-20009)

  - In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds     read due to improper input validation. This could lead to local information disclosure if a malicious USB     HID device were plugged in, with no additional execution privileges needed. User interaction is not needed     for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-188677105References: Upstream     kernel (CVE-2022-20132)

  - In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead     to local escalation of privilege when opening and closing inet sockets with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)

  - In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead     to local escalation of privilege with System execution privileges needed. User interaction is not needed     for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream     kernel (CVE-2022-20154)

  - In various methods of kernel base drivers, there is a possible out of bounds write due to a heap buffer     overflow. This could lead to local escalation of privilege with System execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-182388481References: Upstream kernel (CVE-2022-20166)

  - A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it     possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This     flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel     oops condition that results in a denial of service. (CVE-2022-2153)

  - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that     allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)

  - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)

  - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions. (CVE-2022-29581)

  - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers     to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594)

  - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create     user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to     a use-after-free. (CVE-2022-32250)

  - The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are     used. This occurs because of use of Algorithm 4 ('Double-Hash Port Selection Algorithm') of RFC 6056.
    (CVE-2022-32296)

  - An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer     overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point     registers. (CVE-2022-32981)

  - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree     to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the     related lock held, resulting in a small race window, which can be used by unprivileged guests via PV     devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS)     of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory     pages. (CVE-2022-33744)

  - drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of     a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.
    (CVE-2022-33981)

  - An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init     (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different     vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an     unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data     in net/netfilter/nf_tables_api.c. (CVE-2022-34918)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an     authenticated user to potentially enable denial of service via local access. (CVE-2021-33061)

  - In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to     a race condition. This could lead to local escalation of privilege with no additional execution privileges     needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid     ID: A-200688826References: Upstream kernel (CVE-2021-39686)

  - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency     use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker     could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the     system. (CVE-2022-1652)

  - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP     pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)

  - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use     after free both read or write when non synchronized between cleanup routine and firmware download routine.
    (CVE-2022-1734)

  - With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID     is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
    (CVE-2022-1789)

  - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-33981. Reason: This candidate is a     reservation duplicate of CVE-2022-33981. Notes: All CVE users should reference CVE-2022-33981 instead of     this candidate. All references and descriptions in this candidate have been removed to prevent accidental     usage. (CVE-2022-1836)

  - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions. (CVE-2022-29581)

  - kernel: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an     authenticated user to potentially enable denial of service via local access. (CVE-2021-33061)

  - In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to     a race condition. This could lead to local escalation of privilege with no additional execution privileges     needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid     ID: A-200688826References: Upstream kernel (CVE-2021-39686)

  - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the     small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of     service problem. (CVE-2022-1012)

  - A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a     local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device     is detached and reclaim resources early. (CVE-2022-1195)

  - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency     use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker     could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the     system. (CVE-2022-1652)

  - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP     pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)

  - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use     after free both read or write when non synchronized between cleanup routine and firmware download routine.
    (CVE-2022-1734)

  - With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID     is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
    (CVE-2022-1789)

  - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-33981. Reason: This candidate is a     reservation duplicate of CVE-2022-33981. Notes: All CVE users should reference CVE-2022-33981 instead of     this candidate. All references and descriptions in this candidate have been removed to prevent accidental     usage. (CVE-2022-1836)

  - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions. (CVE-2022-29581)

  - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers     to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594)

  - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create     user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to     a use-after-free. (CVE-2022-32250)

  - kernel: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

リモートの SUSE Linux SLES12 ホストには、SUSE-SU-2022:2629-1 のアドバイザリに記載された複数の脆弱性の影響を受けるパッケージがインストールされています。

  - Linux カーネル 5.0.21 で、細工された btrfs ファイルシステムイメージをマウントし、一部の操作を実行し、アンマウントすると、fs/btrfs/async-thread.c の btrfs_queue_work でメモリ解放後使用 (Use After Free) が発生する可能性があります。(CVE-2019-19377)

  - 5.8.13を通過する Linux カーネルは、セキュアブート禁止署名データベース (別名 dbx) の保護メカニズムを適切に強制しません。これは、certs/blacklist.cおよびcerts/system_keyring.cに影響を与えます。
    (CVE-2020-26541)

  - 一部の AMD CPU は、無条件の直接分岐を超えて一時的に実行され、データ漏洩を引き起こす可能性があります。(CVE-2021-26341)

  - Intel(R) 82599 Ethernet Controllers および Adapters のフロー管理が不十分なため、認証されたユーザーがローカルアクセスを介してサービス拒否を引き起こす可能性があります。(CVE-2021-33061)

  - test_run.c の bpf_prog_test_run_skb に、不適切なサイズ値による領域外読み取りの可能性があります。これにより、システム実行権限が必要なローカルでの情報漏洩が引き起こされる可能性があります。悪用はユーザーの操作を必要としません。製品:  Android。バージョン: Android カーネルAndroid ID:
    A-154175781References: Upstream カーネル (CVE-2021-39711)

  - ユーザーがミラーリング (NFS によるファイルのレプリケーション) を使用する方法に、Linux カーネル NFS サブシステムのメモリ領域外書き込みの欠陥 (1 または 2 バイトのメモリ) が見つかりました。NFS マウントにアクセスできるユーザーが、この欠陥を利用して、システムをクラッシュさせ、システム上で権限を昇格する可能性があります。(CVE-2021-4157)

  - テーブルの混乱サイズが小さいため、net/ipv4/tcp.c の TCP ソースポート生成アルゴリズムにメモリ漏洩の問題が見つかりました。この欠陥により、攻撃者が情報を漏洩する可能性があり、サービス拒否の問題を引き起こす可能性があります。(CVE-2022-1012)

  - Linux カーネルのファイルシステムサブコンポーネントの fs/ext4/namei.c: dx_insert_block() にメモリ解放後使用 (Use After Free) の欠陥が見つかりました。この欠陥により、ユーザー権限を持つローカルの攻撃者がサービス拒否を引き起こす可能性があります。
    (CVE-2022-1184)

  -bad_flp_intr関数の同時使用後解放の欠陥が原因で、Linuxカーネルにより、ローカルの攻撃者がシステム上で任意のコードを実行する可能性があります。攻撃者が特別に細工されたプログラムを実行することで、この脆弱性を悪用して、任意のコードを実行したり、システムでサービス拒否状態を引き起こしたりする可能性があります。(CVE-2022-1652)

  - Linux カーネルの Atheros ワイヤレスアダプタードライバーに、ユーザーが ath9k_htc_wait_for_target 関数を強制的に入力メッセージで失敗させる方法で、メモリ解放後使用 (Use-After-Free) の欠陥が見つかりました。この欠陥によりローカルユーザーがクラッシュさせたり、システムで自分の権限を昇格させたりする可能性があります。(CVE-2022-1679)

  - 競合状態が perf_event_open() に見つかりました。これは、権限のないユーザーが root 権限を取得するために悪用される可能性があります。このバグにより、カーネルアドレス情報漏洩、任意の実行など、複数の悪用プリミティブを構築することが可能です。(CVE-2022-1729)

  - drivers/nfc/nfcmrvl/main.c の nfcmrvl_nci_unregister_dev() で見つかった Linux Kernel の欠陥により、クリーンアップルーチンとファームウェアダウンロードルーチンの間で同期がとれていない場合、メモリ解放後使用読み取りおよび書き込みの両方が発生する可能性があります。
    (CVE-2022-1734)

  - kobject の作成と削除の間の競合状態により、Linux カーネルの NFC コア機能にメモリ解放後使用 (use-after-free) の欠陥が見つかりました。この脆弱性により、CAP_NET_ADMIN 権限を持つローカルの攻撃者がカーネル情報を漏洩する可能性があります。(CVE-2022-1974)

  - /net/nfc/netlink.c に sleep-in-atomic バグがあるため、攻撃者がユーザー空間から nfc デバイスをシミュレーションして Linux カーネルをクラッシュさせる可能性があります。(CVE-2022-1975)

  - lg-probe と hid-lg.c およびその他の USB HID ファイルの関連関数で、不適切な入力検証による、領域外読み取りの可能性があります。これにより、悪意ある USB HID デバイスがプラグインされていた場合、追加の実行権限が不要になり、ローカル情報漏洩が引き起こされる可能性があります。悪用はユーザーの操作を必要としません。製品:  Android。バージョン: Android カーネルAndroid ID: A-188677105References: Upstream カーネル (CVE-2022-20132)

  - igmp.c の ip_check_mc_rcu で、不適切なロックによるメモリ解放後使用 (Use After Free) が発生する可能性があります。これにより、追加の実行権限が不要になり、inet ソケットの開閉時にローカルで権限が昇格される可能性があります。悪用はユーザーの操作を必要としません。製品:  Android。バージョン: Android カーネルAndroid ID: A-112551163References: Upstream カーネル (CVE-2022-20141)

  - sock.c の lock_sock_nested では、競合状態によるメモリ解放後使用 (Use-After-Free) の可能性があります。これにより、システム実行権限が必要なローカルでの権限昇格が引き起こされる可能性があります。悪用はユーザーの操作を必要としません。製品:  Android。バージョン: Android カーネルAndroid ID: A-174846563References: Upstream カーネル (CVE-2022-20154)

  - 一部の Intel(R) プロセッサーのクリーンアップが不完全なため、認証されたユーザーがローカルアクセスを介して情報漏洩を引き起こす可能性があります。(CVE-2022-21123)

  - 一部の Intel(R) プロセッサーのマイクロアーキテクチャフィルバッファのクリーンアップが不完全なため、認証されたユーザーがローカルアクセスを介して情報漏洩を引き起こす可能性があります。(CVE-2022-21125)

  - 一部の Intel(R) プロセッサーでは、特定の特殊レジスタ読み取り操作のクリーンアップが不完全なために、認証されたユーザーがローカルアクセスを介して情報漏洩を引き起こす可能性があります。(CVE-2022-21127)

  - 一部の Intel(R) プロセッサーでは、特定の特殊レジスタ書き込み操作のクリーンアップが不完全なために、認証されたユーザーがローカルアクセスを介して情報漏洩を引き起こす可能性があります。(CVE-2022-21166)

  - 一部の Intel(R) プロセッサの入力検証が不適切なため、認証されたユーザーがローカルアクセスを介してサービス拒否を引き起こす可能性があります。(CVE-2022-21180)

  - KGDB および KDB は、カーネルメモリへの読み取りおよび書き込みアクセスを許可するため、ロックダウン中は制限する必要があります。
    シリアルポートへのアクセス権を持つ攻撃者がデバッガーをトリガーする可能性があるため、トリガーされた場合にデバッガーがロックダウンモードを尊重することが重要です。(CVE-2022-21499)

  - linux の net/rose/rose_timer.c のタイマーハンドラーによって引き起こされるメモリ解放後使用 (use-after-free) の脆弱性があり、攻撃者が権限なしで Linux カーネルをクラッシュさせる可能性があります。(CVE-2022-2318)

  - Linux disk/nic フロントエンドのデータ漏洩。この CNA 情報レコードは複数の CVE に関連しています。テキストはどの側面/脆弱性がどの CVE に対応するかについて説明しています。Linux Block および Network PV デバイスのフロントエンドは、バックエンドと共有する前にメモリ領域をゼロにしません (CVE-2022-26365、CVE-2022-33740)。
    さらに、許可テーブルの粒度が 4K ページ未満の共有を許可しないため、バックエンドと共有されているデータと同じ 4K ページにある関連のないデータが、そのようなバックエンドからアクセス可能になります (CVE-2022-33741、CVE-2022-33742)。(CVE-2022-26365、CVE-2022-33740、CVE-2022-33741、CVE-2022-33742)

  - 戻り命令に対する誤ってトレーニングされた分岐予測により、特定のマイクロアーキテクチャ依存の条件下で、任意の投機的コードが実行される可能性があります。(CVE-2022-29900)

  - Intel マイクロプロセッサー第 6 世代から第 8 世代は、新しい Spectre バリアントの影響を受け、カーネルでの retpoline 緩和策をバイパスし、任意のデータを漏洩することが可能です。権限のないユーザーアクセス権を持つ攻撃者が、リターン命令をハイジャックして、特定のマイクロアーキテクチャ依存の条件下で、任意の投機的コードを実行する可能性があります。(CVE-2022-29901)

  - 5.17.2より前の Linux カーネルは、seccomp 権限を不適切に処理します。PTRACE_SEIZE コードパスにより、攻撃者が PT_SUSPEND_SECCOMP フラグの設定に関する意図された制限をバイパスする可能性があります。(CVE-2022-30594)

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションの自己報告されたバージョン番号にのみ依存しています。

リモートホストにインストールされているカーネルのバージョンは、5.4.196-108.356より前のものです。したがって、ALAS2KERNEL-5.4-2022-026 のアドバイザリに記載されている複数の脆弱性の影響を受けます。

    Linux カーネルで、以下の脆弱性は解決されています。

    dmIO 完了時の mempool NULL ポインター競合を修正しますCVE-2021-47435

    カーネル情報漏洩の欠陥が、Linux カーネルの drivers/scsi/scsi_ioctl.c の scsi_ioctl 関数で特定されました。この欠陥により、特別なユーザー権限 (CAP_SYS_ADMIN または CAP_SYS_RAWIO) を持つローカルの攻撃者が、機密性の問題を生み出す可能性があります。(CVE-2022-0494)

    Linux カーネルの DMA サブシステムで、ユーザーが DMA_FROM_DEVICE を呼び出す方法で、メモリリークの欠陥が見つかりました。
    この欠陥により、ローカルユーザーがカーネル空間からランダムメモリを読み取る可能性があります。(CVE-2022-0854)

    perf: 自己に対する sys_perf_event_open() の競合を修正 (CVE-2022-1729)

    floppy: FDRAWCMD をデフォルトで無効にする (CVE-2022-1836)

    openvswitch カーネルモジュールで整数強制エラーが見つかりました。アクションが十分に多い場合、新しいフローの新しいアクションのためにメモリをコピーおよび予約する際に、reserve_sfa_size() 関数は期待通りに -EMSGSIZE を返さず、領域外書き込みアクセスを引き起こす可能性があります。この欠陥によりローカルユーザーがクラッシュさせたり、システムで自分の権限を昇格させたりする可能性があります。(CVE-2022-2639)

    5.17.2 までの Linux カーネルの SUNRPC サブシステムは、ソケットが意図された状態であることを確認する前に、xs_xprt_free を呼び出すことができます。(CVE-2022-28893)

    Linux カーネルの net/sched の Reference Count の不適切な更新の脆弱性により、ローカルの攻撃者が root に権限昇格させることができます。この問題の影響を受ける対象: 5.18 より前の Linux Kernel バージョン。バージョン 4.14以降のバージョン。(CVE-2022-29581)

    5.17.10 より前の Linux カーネルの drivers/input/input.c に問題が発見されました。イベントコードがビットマップの範囲外になる場合、input_set_capability が不適切に処理するため、攻撃者はサービス拒否 (パニック) を引き起こす可能性があります。(CVE-2022-48619)

    Linux カーネルで、以下の脆弱性は解決されています。

    mmzram スワップで予期せずゼロになったページマッピングを修正しますCVE-2022-49052

    Linux カーネルで、以下の脆弱性は解決されています。

    ALSA: pcm: 同時 hw_params および hw_free 呼び出し間の競合を修正 (CVE-2022-49291)

    二重 fget による、Linux カーネルの virtio ネットワークサブコンポーネントの drivers/vhost/net.c の vhost_net_set_backend にメモリ解放後使用 (use-after-free) の欠陥が見つかりました。この欠陥により、ローカルの攻撃者がシステムをクラッシュさせたり、カーネル情報の漏洩問題を引き起こしたりさえする可能性があります。(CVE-2023-1838)

    Linux カーネルにある VMware の vmxnet3 イーサネット NIC ドライバーの drivers/net/vmxnet3/vmxnet3_drv.c の vmxnet3_rq_alloc_rx_buf に、メモリ解放後使用 (Use After Free) の欠陥が見つかりました。この問題により、ローカルの攻撃者が、vmxnet3_rq_cleanup_all のクリーンアップ中に二重解放によってシステムをクラッシュさせることができ、カーネル情報漏洩の問題が発生することもあります。(CVE-2023-4387)

    Linux カーネルの vmxnet3 のネットワークサブコンポーネントの drivers/net/vmxnet3/vmxnet3_drv.c の vmxnet3_rq_cleanup に、NULL ポインターデリファレンスの欠陥が見つかりました。この問題により、通常のユーザー権限を持つローカル攻撃者が、クリーンアップ中の健全性チェックの欠落によるサービス妨害を引き起こす可能性があります。
    (CVE-2023-4459)

Tenable は、前述の記述ブロックをテスト済み製品のセキュリティアドバイザリから直接抽出しています。

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションが自己報告するバージョン番号にのみ依存していることに注意してください。

遠端主機上安裝的核心版本早於 5.4.196-108.356。因此，會受到 ALAS2KERNEL-5.4-2022-026 公告中所提及的多個弱點影響。

    在 Linux 核心中，下列弱點已解決：

    dm修正完成 IO 時的 mempool NULL 指標爭用 (CVE-2021-47435)

    在 Linux 核心的 drivers/scsi/scsi_ioctl.c 的 scsi_ioctl 函式中發現一個核心資訊洩漏缺陷。此缺陷允許具有特殊使用者權限 (CAP_SYS_ADMIN 或 CAP_SYS_RAWIO) 的本機攻擊者破壞機密性。(CVE-2022-0494)

    在使用者呼叫 DMA_FROM_DEVICE 時，於 Linux 核心的 DMA 子系統中發現記憶體流失缺陷。
    此缺陷允許本機使用者在核心中讀取隨機記憶體。(CVE-2022-0854)

    perf：修復 sys_perf_event_open() 與自身的爭用 (CVE-2022-1729)

    floppy：預設停用 FDRAWCMD (CVE-2022-1836)

    在 openvswitch 核心模組中發現整數強制轉換錯誤。假設有足夠多的動作，當針對新流程的新動作複製和保留記憶體時，reserve_sfa_size() 函式並未如預期傳回 -EMSGSIZE，這可能導致超出邊界寫入存取。本機使用者可利用此缺陷造成系統當機，或可能提升自己的系統權限。(CVE-2022-2639)

    Linux 核心 5.17.2 版及之前所有版本中的 SUNRPC 子系統可在確保通訊端處於預定狀態之前呼叫 xs_xprt_free。(CVE-2022-28893)

    Linux 核心的 net/sched 中包含不當更新參照計數的弱點，本機攻擊者可利用此弱點將特權提升為根權限。此問題會影響：Linux 核心 5.18 之前版本；4.14 和更新版本。(CVE-2022-29581)

    在 5.17.10 版之前的 Linux 核心中，發現 drivers/input/input.c 中存在問題。攻擊者可造成拒絕服務 (不穩定)，因為 input_set_capability 未正確處理事件程式碼超出點陣圖的情況。(CVE-2022-48619)

    在 Linux 核心中，下列弱點已解決：

    mm透過 zram swap 修正非預期的歸零頁面對應 (CVE-2022-49052)

    在 Linux 核心中，下列弱點已解決：

    ALSA：pcm：修正並行 hw_params 和 hw_free 呼叫間的爭用 (CVE-2022-49291)

    在 Linux 核心的 virtio 網路子元件中，發現 drivers/vhost/net.c 的 vhost_net_set_backend 具有雙重 fget 導致的釋放後使用缺陷。本機攻擊者可利用此缺陷造成系統當機或核心資訊洩漏問題。(CVE-2023-1838)

    在 Linux 核心的 VMware vmxnet3 乙太網路 NIC 驅動程式中，發現 drivers/net/vmxnet3/vmxnet3_drv.c 的 vmxnet3_rq_alloc_rx_buf 中存在釋放後使用缺陷。本機攻擊者可利用此問題，在清理 vmxnet3_rq_cleanup_all 時，造成系統因雙重釋放而當機，這也可導致核心資訊洩漏問題。(CVE-2023-4387)

    在 Linux 核心的 vmxnet3 中，發現網路子元件中 drivers/net/vmxnet3/vmxnet3_drv.c 的 vmxnet3_rq_cleanup 存在 NULL 指標解除參照缺陷。由於清理過程中缺少健全性檢查，具有正常使用者特權的本機攻擊者可藉由此問題造成拒絕服務。
    (CVE-2023-4459)

Tenable 已直接從所測試產品的安全公告擷取前置描述區塊。

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

远程主机上安装的内核版本低于 5.4.196-108.356。因此，会受到 ALAS2KERNEL-5.4-2022-026 公告中提及的多个漏洞影响。

    在 Linux 内核中，以下漏洞已修复：

    dm修复完成 IO 时的内存池空指针争用 (CVE-2021-47435)

    在 Linux 内核的 drivers/scsi/scsi_ioctl.c 中发现 scsi_ioctl 函数包含内核信息泄漏缺陷。该缺陷允许具有特殊用户特权（CAP_SYS_ADMIN 或 CAP_SYS_RAWIO）的本地攻击者造成机密性问题。（CVE-2022-0494）

    在 Linux 内核的 DMA 子系统中发现了一个与用户调用 DMA_FROM_DEVICE 的方式相关的内存泄漏缺陷。
    本地用户可利用此缺陷，读取内核空间中的随机内存。(CVE-2022-0854)

    perf：修复了 sys_perf_event_open() 与自身争用的情形 (CVE-2022-1729)

    floppy：默认禁用 FDRAWCMD (CVE-2022-1836)

    在 openvswitch 内核模块中发现了一个整数强制转换错误。假定有足够多的操作，当为新流程的新操作复制和预留内存时，reserve_sfa_size() 函数不会按预期返回 -EMSGSIZE，这可能导致越界写入问题。本地用户可利用此缺陷导致系统崩溃或可能升级其系统权限。(CVE-2022-2639)

    在 Linux 内核 5.17.2 及之前的所有版本中，SUNRPC 子系统可在确保套接字处于预期状态之前调用 xs_xprt_free。(CVE-2022-28893)

    Linux 内核 net/sched 中存在不当更新引用计数漏洞，本地攻击者可利用此漏洞将权限升级为 root 权限。此问题会影响 Linux 内核 5.18 之前版本、4.14 及更新版本。(CVE-2022-29581)

    在 Linux 内核 5.17.10 之前的版本中，在 drivers/input/input.c 中发现一个问题。攻击者可造成拒绝服务（不稳定），因为 input_set_capability 未正确处理事件代码落在位图之外的情况。(CVE-2022-48619)

    在 Linux 内核中，以下漏洞已修复：

    mm修复使用 zram 交换的意外归零页面映射 (CVE-2022-49052)

    在 Linux 内核中，以下漏洞已修复：

    ALSA：pcm：修复并发 hw_params 和 hw_free 调用之间的争用问题 (CVE-2022-49291)

    在 Linux 内核的 virtio 网络子组件中，发现 drivers/vhost/net.c 的 vhost_net_set_backend 中存在双重 fget 导致的释放后使用缺陷。本地攻击者可能会利用此缺陷造成系统崩溃，甚至可能导致内核信息泄露问题。(CVE-2023-1838)

    在 Linux 内核的 VMware vmxnet3 以太网 NIC 驱动程序中，发现 drivers/net/vmxnet3/vmxnet3_drv.c 的 vmxnet3_rq_alloc_rx_buf 中存在一个释放后使用缺陷。本地攻击者可能会利用此缺陷，在清理 vmxnet3_rq_cleanup_all 时，导致系统因双重释放而崩溃，这还有可能导致内核信息泄漏问题。(CVE-2023-4387)

    在 Linux 内核的 vmxnet3 网络子组件中，发现 drivers/net/vmxnet3/vmxnet3_drv.c 的 vmxnet3_rq_cleanup 中存在一个空指针取消引用缺陷。由于清理期间缺少健全性检查，具有普通用户权限的本地攻击者可利用此问题造成拒绝服务。
    (CVE-2023-4459)

Tenable 已直接从测试产品的安全公告中提取上述描述块。

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

The version of kernel installed on the remote host is prior to 5.4.196-108.356. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-026 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    dm: fix mempool NULL pointer race when completing IO (CVE-2021-47435)

    A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in     the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or     CAP_SYS_RAWIO) to create issues with confidentiality. (CVE-2022-0494)

    A memory leak flaw was found in the Linux kernel's DMA subsystem, in the way a user calls DMA_FROM_DEVICE.
    This flaw allows a local user to read random memory from the kernel space. (CVE-2022-0854)

    perf: Fix sys_perf_event_open() race against self (CVE-2022-1729)

    floppy: disable FDRAWCMD by default (CVE-2022-1836)

    An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of     actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size()     function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This     flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-2639)

    The SUNRPC subsystem in the Linux kernel through 5.17.2 can call xs_xprt_free before ensuring that sockets     are in the intended state. (CVE-2022-28893)

    Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions. (CVE-2022-29581)

    An issue was discovered in drivers/input/input.c in the Linux kernel before 5.17.10. An attacker can cause     a denial of service (panic) because input_set_capability mishandles the situation in which an event code     falls outside of a bitmap. (CVE-2022-48619)

    In the Linux kernel, the following vulnerability has been resolved:

    mm: fix unexpected zeroed page mapping with zram swap (CVE-2022-49052)

    In the Linux kernel, the following vulnerability has been resolved:

    ALSA: pcm: Fix races among concurrent hw_params and hw_free calls (CVE-2022-49291)

    A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network     subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the     system, and could even lead to a kernel information leak problem. (CVE-2023-1838)

    A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in     VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash     the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a     kernel information leak problem. (CVE-2023-4387)

    A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in     the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with     normal user privilege to cause a denial of service due to a missing sanity check during cleanup.
    (CVE-2023-4459)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an     authenticated user to potentially enable denial of service via local access. (CVE-2021-33061)

  - When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
    (CVE-2021-33656)

  - In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to     a race condition. This could lead to local escalation of privilege with no additional execution privileges     needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid     ID: A-200688826References: Upstream kernel (CVE-2021-39686)

  - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency     use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker     could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the     system. (CVE-2022-1652)

  - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP     pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)

  - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged     user to gain root privileges. The bug allows to build several exploit primitives such as kernel address     information leak, arbitrary execution, etc. (CVE-2022-1729)

  - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use     after free both read or write when non synchronized between cleanup routine and firmware download routine.
    (CVE-2022-1734)

  - With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID     is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
    (CVE-2022-1789)

  - In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds     read due to improper input validation. This could lead to local information disclosure if a malicious USB     HID device were plugged in, with no additional execution privileges needed. User interaction is not needed     for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-188677105References: Upstream     kernel (CVE-2022-20132)

  - In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead     to local escalation of privilege when opening and closing inet sockets with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)

  - In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead     to local escalation of privilege with System execution privileges needed. User interaction is not needed     for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream     kernel (CVE-2022-20154)

  - In various methods of kernel base drivers, there is a possible out of bounds write due to a heap buffer     overflow. This could lead to local escalation of privilege with System execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-182388481References: Upstream kernel (CVE-2022-20166)

  - A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it     possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This     flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel     oops condition that results in a denial of service. (CVE-2022-2153)

  - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that     allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)

  - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)

  - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions. (CVE-2022-29581)

  - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create     user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to     a use-after-free. (CVE-2022-32250)

  - The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are     used. This occurs because of use of Algorithm 4 ('Double-Hash Port Selection Algorithm') of RFC 6056.
    (CVE-2022-32296)

  - Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree     to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the     related lock held, resulting in a small race window, which can be used by unprivileged guests via PV     devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS)     of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory     pages. (CVE-2022-33744)

  - drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of     a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.
    (CVE-2022-33981)

  - An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init     (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different     vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an     unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data     in net/netfilter/nf_tables_api.c. (CVE-2022-34918)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0158 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2021-33655:
    When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of     bounds.

    CVE-2021-33656:
    When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

    CVE-2022-0494:
    A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in     the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or     CAP_SYS_RAWIO) to create issues with confidentiality.

    CVE-2022-0500:
    A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds     memory write in the Linux kernels BPF subsystem due to the way a user loads BTF. This flaw allows a     local user to crash or escalate their privileges on the system.

    CVE-2022-1012:
    A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the     small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of     service problem.

    CVE-2022-1184:
    A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernels filesystem     sub-component. This flaw allows a local attacker with a user privilege to cause a denial of service.

    CVE-2022-1462:
    An out-of-bounds read flaw was found in the Linux kernels TeleTYpe subsystem. The issue occurs in how a     user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage     of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read     unauthorized random data from memory.

    CVE-2022-1652:
    Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency     use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker     could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the     system.

    CVE-2022-1729:
    A use-after-free flaw was found in the Linux kernels performance events functionality. A user triggers     a race condition in setting up performance monitoring between the leading PERF_TYPE_TRACEPOINT and sub     PERF_EVENT_HARDWARE plus the PERF_EVENT_SOFTWARE using the perf_event_open() function with these three     types. This flaw allows a local user to crash the system.

    CVE-2022-1734:
    A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use     after free both read or write when non synchronized between cleanup routine and firmware download routine.

    CVE-2022-1786:
    A use-after-free flaw was found in the Linux kernels io_uring subsystem in the way a user sets up a     ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw     allows a local user to crash or escalate their privileges on the system.

    CVE-2022-1789:
    With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID     is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.

    CVE-2022-1836:
    ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-33981. Reason: This candidate is a     reservation duplicate of CVE-2022-33981. Notes: All CVE users should reference CVE-2022-33981 instead of     this candidate. All references and descriptions in this candidate have been removed to prevent accidental     usage.

    CVE-2022-1966:
    ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-32250. Reason: This candidate is a     duplicate of CVE-2022-32250. Notes: All CVE users should reference CVE-2022-32250 instead of this     candidate. All references and descriptions in this candidate have been removed to prevent accidental     usage.

    CVE-2022-1972:
    CVE-2022-1972 is duplicate of CVE-2022-2078, so please consider CVE-2022-2078 instead.

    CVE-2022-1974:
    A use-after-free flaw was found in the Linux kernel's NFC core functionality due to a race condition     between kobject creation and delete. This vulnerability allows a local attacker with CAP_NET_ADMIN     privilege to leak kernel information.

    CVE-2022-1975:
    No description is available for this CVE.

    CVE-2022-2078:
    A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an     attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and     possibly to run code.

    CVE-2022-21123:
    Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated     user to potentially enable information disclosure via local access.

    CVE-2022-21125:
    Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an     authenticated user to potentially enable information disclosure via local access.

    CVE-2022-21166:
    Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an     authenticated user to potentially enable information disclosure via local access.

    CVE-2022-21499:
    KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown.
    An attacker with access to a serial port could trigger the debugger so it is important that the debugger     respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.5 (Confidentiality, Integrity and     Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H).

    CVE-2022-21505:
    A bug in the IMA subsystem was discovered which would incorrectly allow kexec to be used when kernel     lockdown was enabled

    CVE-2022-2153:
    A flaw was found in the Linux kernels KVM when attempting to set a SynIC IRQ. This issue makes it     possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This     flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel     oops condition that results in a denial of service.

    CVE-2022-2318:
    There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that     allow attackers to crash linux kernel without any privileges.

    CVE-2022-23816:
    A flaw was found in hw. Mis-trained branch predictions for return instructions may allow arbitrary     speculative code execution under certain microarchitecture-dependent conditions.

    CVE-2022-2503:
    Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to     restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently     allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass     verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and     unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for     peripherals that do not verify firmware updates.

    CVE-2022-2586:
    A use-after-free flaw was found in nf_tables cross-table in the net/netfilter/nf_tables_api.c function in     the Linux kernel. This flaw allows a local, privileged attacker to cause a use-after-free problem at the     time of table deletion, possibly leading to local privilege escalation.

    CVE-2022-2588:
    A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the     Linux kernel. This flaw allows a local user to crash the system and possibly lead to a local privilege     escalation problem.

    CVE-2022-26365:
    Linux disk/nic frontends data leaks [This CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742).

    CVE-2022-2639:
    An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of     actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size()     function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This     flaw allows a local user to crash or potentially escalate their privileges on the system.

    CVE-2022-28893:
    The SUNRPC subsystem in the Linux kernel through 5.17.2 can call xs_xprt_free before ensuring that sockets     are in the intended state.

    CVE-2022-29581:
    Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions.

    CVE-2022-2959:
    A race condition was found in the Linux kernel's watch queue due to a missing lock in pipe_resize_ring().
    The specific flaw exists within the handling of pipe buffers. The issue results from the lack of proper     locking when performing operations on an object. This flaw allows a local user to crash the system or     escalate their privileges on the system.

    CVE-2022-2978:
    A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function     security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use     this flaw to crash the system or potentially escalate their privileges on the system.

    CVE-2022-29900:
    Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution     under certain microarchitecture-dependent conditions.

    CVE-2022-29901:
    Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their     retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can     hijack return instructions to achieve arbitrary speculative code execution under certain     microarchitecture-dependent conditions.

    CVE-2022-32250:
    net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create     user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to     a use-after-free.

    CVE-2022-32296:
    The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are     used.

    CVE-2022-32981:
    An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer     overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point     registers.

    CVE-2022-33740:
    Linux disk/nic frontends data leaks [This CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742).

    CVE-2022-33741:
    Linux disk/nic frontends data leaks [This CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742).

    CVE-2022-33742:
    Linux disk/nic frontends data leaks [This CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742).

    CVE-2022-33743:
    network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data     Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further     processing to nevertheless be freed.

    CVE-2022-33744:
    Linux disk/nic frontends data leaks [This CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742).

    CVE-2022-33981:
    drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of     a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.

    CVE-2022-34918:
    An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init     (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different     vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an     unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data     in net/netfilter/nf_tables_api.c.

    CVE-2022-36123:
    The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This     allows Xen PV guest OS users to cause a denial of service or gain privileges.

    CVE-2022-36879:
    An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in     net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

    CVE-2022-36946:
    nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote     attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte     nfta_payload attribute, an skb_pull can encounter a negative skb->len.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2629-1 advisory.

  - In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and     unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c. (CVE-2019-19377)

  - The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database     (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.
    (CVE-2020-26541)

  - Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result     in data leakage. (CVE-2021-26341)

  - Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an     authenticated user to potentially enable denial of service via local access. (CVE-2021-33061)

  - In bpf_prog_test_run_skb of test_run.c, there is a possible out of bounds read due to Incorrect Size     Value. This could lead to local information disclosure with System execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-154175781References: Upstream kernel (CVE-2021-39711)

  - An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in     the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could     potentially use this flaw to crash the system or escalate privileges on the system. (CVE-2021-4157)

  - A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the     small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of     service problem. (CVE-2022-1012)

  - A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel's filesystem sub-     component. This flaw allows a local attacker with a user privilege to cause a denial of service.
    (CVE-2022-1184)

  - Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency     use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker     could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the     system. (CVE-2022-1652)

  - A use-after-free flaw was found in the Linux kernel's Atheros wireless adapter driver in the way a user     forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local     user to crash or potentially escalate their privileges on the system. (CVE-2022-1679)

  - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged     user to gain root privileges. The bug allows to build several exploit primitives such as kernel address     information leak, arbitrary execution, etc. (CVE-2022-1729)

  - A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use     after free both read or write when non synchronized between cleanup routine and firmware download routine.
    (CVE-2022-1734)

  - A use-after-free flaw was found in the Linux kernel's NFC core functionality due to a race condition     between kobject creation and delete. This vulnerability allows a local attacker with CAP_NET_ADMIN     privilege to leak kernel information. (CVE-2022-1974)

  - There is a sleep-in-atomic bug in /net/nfc/netlink.c that allows an attacker to crash the Linux kernel by     simulating a nfc device from user-space. (CVE-2022-1975)

  - In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds     read due to improper input validation. This could lead to local information disclosure if a malicious USB     HID device were plugged in, with no additional execution privileges needed. User interaction is not needed     for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-188677105References: Upstream     kernel (CVE-2022-20132)

  - In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead     to local escalation of privilege when opening and closing inet sockets with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)

  - In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead     to local escalation of privilege with System execution privileges needed. User interaction is not needed     for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream     kernel (CVE-2022-20154)

  - Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated     user to potentially enable information disclosure via local access. (CVE-2022-21123)

  - Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an     authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125)

  - Incomplete cleanup in specific special register read operations for some Intel(R) Processors may allow an     authenticated user to potentially enable information disclosure via local access. (CVE-2022-21127)

  - Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an     authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)

  - Improper input validation for some Intel(R) Processors may allow an authenticated user to potentially     cause a denial of service via local access. (CVE-2022-21180)

  - KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown.
    An attacker with access to a serial port could trigger the debugger so it is important that the debugger     respect the lockdown mode when/if it is triggered. (CVE-2022-21499)

  - There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that     allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)

  - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text     explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device     frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
    Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to     unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend     (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)

  - Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution     under certain microarchitecture-dependent conditions. (CVE-2022-29900)

  - Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their     retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can     hijack return instructions to achieve arbitrary speculative code execution under certain     microarchitecture-dependent conditions. (CVE-2022-29901)

  - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers     to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名稱	產品	系列	已發布	已更新	嚴重性
169330	EulerOS Virtualization 2.10.1 : kernel (EulerOS-SA-2022-2891)	Nessus	Huawei Local Security Checks	2022/12/27	2024/1/16	high
164244	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-2257)	Nessus	Huawei Local Security Checks	2022/8/17	2024/1/16	high
164207	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-2244)	Nessus	Huawei Local Security Checks	2022/8/17	2024/1/16	high
163752	SUSE SLES12 セキュリティ更新プログラム: カーネル (SUSE-SU-2022:2629-1)	Nessus	SuSE Local Security Checks	2022/8/3	2024/1/16	high
162005	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-026)	Nessus	Amazon Linux Local Security Checks	2022/6/10	2025/5/23	high
162005	Amazon Linux 2：kernel (ALASKERNEL-5.4-2022-026)	Nessus	Amazon Linux Local Security Checks	2022/6/10	2025/5/23	high
162005	Amazon Linux 2：内核 (ALASKERNEL-5.4-2022-026)	Nessus	Amazon Linux Local Security Checks	2022/6/10	2025/5/23	high
162005	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-026)	Nessus	Amazon Linux Local Security Checks	2022/6/10	2025/5/23	high
169319	EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2022-2873)	Nessus	Huawei Local Security Checks	2022/12/27	2024/1/16	high
187326	NewStart CGSL MAIN 6.06 : kernel Multiple Vulnerabilities (NS-SA-2023-0083)	Nessus	NewStart CGSL Local Security Checks	2023/12/27	2024/6/26	high
236488	Alibaba Cloud Linux 3 : 0158: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0158)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/5/15	high
163752	SUSE SLES12 Security Update : kernel (SUSE-SU-2022:2629-1)	Nessus	SuSE Local Security Checks	2022/8/3	2024/1/16	high

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