このqemuの更新では、次の問題を修正します:

CVE-2020-12829: sm501 デバイスエミュレーションの OOB アクセスを修正します (bsc#1172385)

CVE-2020-25723: usb xhci パケット処理のメモリ解放後使用 (Use After Free) を修正します (bsc#1178934)

CVE-2020-25084: usb ehci パケット処理のメモリ解放後使用 (Use After Free) を修正します (bsc#1176673)

CVE-2020-25625: usb hcd-ohci エミュレーションの無限ループ (DoS) を修正します (bsc#1176684)

CVE-2020-25624: usb hcd-ohci エミュレーションの OOB アクセスを修正します (bsc#1176682)

CVE-2020-27617: 共有ネットワーク処理コードでゲストがトリガー可能なアサートを修正します (bsc#1178174)

CVE-2020-28916: e1000e デバイスエミュレーションの無限ループ (DoS) を修正します (bsc#1179468)

CVE-2020-29443: atapi エミュレーションの OOB アクセスを修正します (bsc#1181108)

CVE-2020-27821: MSIx エミュレーションのヒープオーバーフローを修正します (bsc#1179686)

CVE-2020-15469: NULL ポインターデリファレンスを修正します。mmio ops の (DoS) (bsc#1173612)

CVE-2021-20257: e1000 デバイスエミュレーションの無限ループ (DoS) を修正します (bsc#1182577)

CVE-2021-3416: rtl8139 NIC エミュレーションの OOB アクセス (スタックオーバーフロー) を修正します (bsc#1182968)

CVE-2021-3416: その他の NIC エミュレーションの OOB アクセス (スタックオーバーフロー) を修正します (bsc#1182968)

CVE-2020-27616: ati-vga エミュレーションの OOB アクセスを修正します (bsc#1178400)

CVE-2020-29129: SLIRP ARP/NCSI パケット処理の OOB アクセスを修正します (bsc#1179466、CVE-2020-29130、bsc#1179467)

パッケージスクリプトを修正し、一時作業ディレクトリおよびログファイルにハードコードされたパスを使用しないようにします (bsc#1182425)

SLE15-SP2 から SLE15-SP3 への更新、および同等の openSUSE をカバーするために、forsplits/13 を介して split-provides を追加します (bsc#1184064)

git パッケージングワークフローにおけるさらにいくらかのユーザビリティの向上を追加しました

注: Tenable Network Security は、前述の記述ブロックを SUSE セキュリティアドバイザリから直接抽出しています。Tenable では、そこに新しい問題を追加することはせずに、できる限り自動的に整理と書式設定をするようにしています。

リモートのOracle Linux 8ホストに、ELSA-2021-1762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るパッケージがインストールされています。

  - 実行しているQEMUドメインのネットワークインターフェイスに関する情報をリクエストする、6.8.0より前のバージョンのlibvirtのAPIに、ダブル空きメモリの問題が見つかりました。この欠陥は、polkitアクセスコントロールドライバーに影響します。具体的には、制限されたACL権限で読み書きソケットに接続するクライアントが、この欠陥を利用して、libvirtデーモンをクラッシュさせ、サービス拒否またはシステムでの権限昇格を引き起こす可能性があります。この脆弱性が最大の脅威となるのは、データの機密性と整合性、ならびにシステムの可用性です。（CVE-2020-25637）

  - QEMU 4.1.0のblock/iscsi.cのiscsi_aio_ioctl_cbには、ヒープベースのバッファオーバーリードがあり、プロセスメモリから攻撃者に無関係な情報を漏洩する可能性があります。（CVE-2020-11947）

  - QEMU 5.1.0のhw/ide/atapi.cにあるide_atapi_cmd_reply_endでは、バッファインデックスが検証されないため、領域外の読み取りアクセスが可能です。（CVE-2020-29443）

  - 5.0.0までのQEMUのネットワークパケット処理でアサーション失敗が発生する可能性があります。この問題はe1000eおよびvmxnet3ネットワークデバイスに影響します。悪意のあるゲストユーザー/プロセスがこの欠陥を利用して、ホストのQEMUプロセスを中止させる可能性があります。その結果、hw/net/net_tx_pkt.cのnet_tx_pkt_add_raw_fragmentでサービス拒否が発生します。（CVE-2020-16092）

  - 4.3.1までのlibslirpにあるncsi.cは、パケットの合計長を超えている場合でも、特定量のヘッダーデータの読み取りを試みるため、バッファオーバーリードを引き起こします。（CVE-2020-29129）

  - 4.3.1までのlibslirpにあるslirp.cは、パケットの合計長を超えている場合でも、特定量のヘッダーデータの読み取りを試みるため、バッファオーバーリードを引き起こします。（CVE-2020-29130）

  - QEMU 5.0.0のhw/net/e1000e_core.cに、NULLバッファアドレスを持つRX記述子による無限ループがあります。
    (CVE-2020-28916)

  - 到達可能なアサーションの問題が、QEMUのUSB EHCIエミュレーションコードで見つかりました。これは、DMAメモリマップ障害の処理の欠落により、USBリクエストの処理中に発生する可能性があります。ゲスト内の悪意のある特権ユーザーがこの欠陥を悪用して偽造のUSBリクエストを送信し、ホストでQEMUプロセスをクラッシュさせ、サービス拒否を引き起こす可能性があります。（CVE-2020-25723）

  - メモリ領域キャッシュの初期化中に、QEMUのメモリ管理APIに欠陥が見つかりました。
    この問題により、MMIO操作の実行中にMSI-Xテーブルへの領域外書き込みアクセスが発生する可能性があります。ゲストユーザーがこの欠陥を悪用して、ホスト上でQEMUプロセスをクラッシュさせ、サービス拒否を引き起こす可能性があります。この欠陥は、5.2.0より前のQEMUバージョンに影響を与えます。（CVE-2020-27821）

  -**拒否** この候補番号は使用しないでください。理由：この候補はCVE-2020-28916の複製です（CVE-2020-25707）

Nessus はこ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。

リモートのOracle Linux 7ホストに、ELSA-2021-9285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るパッケージがインストールされています。

  - In QEMU 4.2.0では、MemoryRegionOpsオブジェクトに読み取り/書き込みのコールバックメソッドがなく、NULLポインターデリファレンスが発生する可能性があります。（CVE-2020-15469）

  - メモリ領域キャッシュの初期化中に、QEMUのメモリ管理APIに欠陥が見つかりました。
    この問題により、MMIO操作の実行中にMSI-Xテーブルへの領域外書き込みアクセスが発生する可能性があります。ゲストユーザーがこの欠陥を悪用して、ホスト上でQEMUプロセスをクラッシュさせ、サービス拒否を引き起こす可能性があります。この欠陥は、5.2.0より前のQEMUバージョンに影響を与えます。（CVE-2020-27821）

  - aarch64プラットフォームのqemu 4.2.0以前のQEMUのARM Generic Interrupt Controllerエミュレーターに、領域外のヒープバッファアクセスの問題が見つかりました。この問題が発生するのは、割り込みIDをコントローラーメモリ領域に書き込む際に、4ビット幅にマスクされていないためです。コントローラーの状態フィールドとその後続の処理を更新する際に、前述の問題が発生する可能性があります。特権ゲストユーザーがこの欠陥を利用して、ホストのQEMUプロセスをクラッシュさせてDoSシナリオを引き起こす可能性があります。（CVE-2021-20221）

  - CVE-2020-17380/CVE-2020-25085用のパッチが無効であることが判明したため、QEMUはSDHCIコントローラーエミュレーションコードで以前に見つかった領域外読み取り/書き込みアクセスの問題に対して脆弱になります。この欠陥により、悪意のある特権ゲストがホスト上のQEMUプロセスをクラッシュさせ、サービス拒否または潜在的なコード実行を引き起こす可能性があります。5.2.0までのQEMUはこの影響を受けます。（CVE-2021-3409）

Nessusはこ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。

qemuのこの更新では、以下の問題を修正します:

sm501 デバイスエミュレーションの OOB アクセスを修正します (CVE-2020-12829、bsc#1172385)

MegaRAID SAS 8708EM2 エミュレーションでの OOB アクセスの可能性を修正しました (CVE-2020-13362 bsc#1172383)

usb xhci パケット処理のメモリ解放後使用 (Use After Free) を修正しました (CVE-2020-25723、bsc#1178934)

usb ehci パケット処理のメモリ解放後使用 (Use After Free) を修正します (CVE-2020-25084、bsc#1176673)

usb hcd-ohci エミュレーションの無限ループ (DoS) を修正します (CVE-2020-25625、bsc#1176684)

usb hcd-ohci エミュレーションの OOB アクセスを修正します (CVE-2020-25624、bsc#1176682)

共有ネットワーク処理コードでゲストがトリガー可能なアサートを修正します (CVE-2020-27617、bsc#1178174)

e1000e デバイスエミュレーションでの無限ループ (DoS) を修正します (CVE-2020-28916、bsc#1179468)

atapi エミュレーションの OOB アクセスを修正します (CVE-2020-29443、bsc#1181108)

MSIx エミュレーションのヒープオーバーフロー (CVE-2020-27821、bsc#1179686)

NULL ポインターデリファレンスを修正します。(DoS) mmio ops (CVE-2020-15469、bsc#1173612)

e1000 デバイスエミュレーションの無限ループ (DoS) を修正します (CVE-2021-20257、bsc#1182577)

rtl8139 NIC エミュレーションの OOB アクセス (スタックオーバーフロー) を修正します (CVE-2021-3416、bsc#1182968)

その他の NIC エミュレーションの OOB アクセス (スタックオーバーフロー) を修正します (CVE-2021-3416)

SLIRP ARP/NCSI パケット処理の OOB アクセスを修正します (CVE-2020-29129、bsc#1179466、CVE-2020-29130、bsc#1179467)

MegaRAID SAS 8708EM2 エミュレーションの NULL ポインターデリファレンスの可能性 (DoS) を修正します (CVE-2020-13659 bsc#1172386)

s390 ゲストが zipl 起動メニューインデックスの検索に失敗する問題を修正します (bsc#1183979)

iscsi の OOB アクセスを修正します (CVE-2020-11947 bsc#1180523)

vmxnet3 エミュレーションの OOB アクセスを修正します (CVE-2021-20203 bsc#1181639)

パッケージスクリプトを修正し、一時作業ディレクトリおよびログファイルにハードコードされたパスを使用しないようにします (bsc#1182425)

virtfs の潜在的な権限昇格を修正します (CVE-2021-20181 bsc#1182137)

より適切なステータスコードの使用など、タイムアウトおよびエラー状態に関する qemu scsi パススルーに修正を適用します。(bsc#1178049)

ARM 割り込み処理の OOB アクセスを修正します (CVE-2021-20221 bsc#1181933)

このパッチには以前にアドレスが含まれていたことに注意してください (CVE-2020-13765 bsc#1172478)

フォーマットを改善するためにスペックファイルを調整し、e2fsprogs-devel および libpcap-devel の不要な BuildRequires を削除します

- s390 上の vfio-pci デバイスがエラー状態になる問題を修正しました (bsc#1179725)

サブシステムのリセット後、PCI デバイスが利用できなくなる問題を修正します。(bsc#1179726)

注: Tenable Network Security は、前述の記述ブロックを SUSE セキュリティアドバイザリから直接抽出しています。Tenable では、そこに新しい問題を追加することはせずに、できる限り自動的に整理と書式設定をするようにしています。

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3099 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3099-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Abhijith PA     September 05, 2022                            https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : qemu     Version        : 1:3.1+dfsg-8+deb10u9     CVE ID         : CVE-2020-13253 CVE-2020-15469 CVE-2020-15859 CVE-2020-25084                      CVE-2020-25085 CVE-2020-25624 CVE-2020-25625 CVE-2020-25723                      CVE-2020-27617 CVE-2020-27821 CVE-2020-28916 CVE-2020-29129                      CVE-2020-29443 CVE-2020-35504 CVE-2020-35505 CVE-2021-3392                      CVE-2021-3416 CVE-2021-3507 CVE-2021-3527 CVE-2021-3582                      CVE-2021-3607 CVE-2021-3608 CVE-2021-3682 CVE-2021-3713                      CVE-2021-3748 CVE-2021-3930 CVE-2021-4206 CVE-2021-4207                      CVE-2021-20181 CVE-2021-20196 CVE-2021-20203 CVE-2021-20221                      CVE-2021-20257 CVE-2022-26354 CVE-2022-35414

    Multiple security issues were discovered in QEMU, a fast processor     emulator, which could result in denial of service or the the execution     of arbitrary code.

    For Debian 10 buster, these problems have been fixed in version     1:3.1+dfsg-8+deb10u9.

    We recommend that you upgrade your qemu packages.

    For the detailed security status of qemu please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/qemu

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-1762 advisory.

    - Resolves: bz#1917451       (CVE-2020-29443 virt:rhel/qemu-kvm: QEMU: ide: atapi: OOB access while processing read commands     [rhel-8.4.0])
    - Resolves: bz#1919111       (CVE-2020-35517 virt:rhel/qemu-kvm: QEMU: virtiofsd: potential privileged host device access from guest     [rhel-8.4.0])
    - Resolves: bz#1912974       (CVE-2020-11947 virt:rhel/qemu-kvm: QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c     may lead to information disclosure [rhel-8])
    - Resolves: bz#1918054       (CVE-2020-10756 virt:rhel/qemu-kvm: QEMU: slirp: networking out-of-bounds read information disclosure     vulnerability [rhel-8.4.0])
    - Resolves: bz#1904393       (CVE-2020-27821 virt:rhel/qemu-kvm: QEMU: heap buffer overflow in msix_table_mmio_write() in     hw/pci/msix.c [rhel-8])
    - Resolves: bz#1898628       (CVE-2020-25723 virt:rhel/qemu-kvm: QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-     ehci.c [rhel-8])
    - Resolves: bz#1903070       (CVE-2020-25707 CVE-2020-28916 virt:rhel/qemu-kvm: various flaws [rhel-8])
    - Resolves: bz#1902237       (CVE-2020-29129 CVE-2020-29130 virt:rhel/qemu-kvm: QEMU: slirp: out-of-bounds access while processing     ARP/NCSI packets [rhel-8])
    - Resolves: bz#1860994       (CVE-2020-16092 virt:rhel/qemu-kvm: QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment()     in hw/net/net_tx_pkt.c [rhel-8])

Tenable has extracted the preceding description block directly from the Oracle 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.

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

  - The ahci_commit_buf function in ide/ahci.c in QEMU allows attackers to cause a denial of service (NULL     dereference) when the command header 'ad->cur_cmd' is null. (CVE-2019-12067)

  - hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address     in an msi-x mmio operation. (CVE-2020-13754)

  - QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c     mishandles a write operation in the SDHC_BLKSIZE case. (CVE-2020-25085)

  - pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because     pci_get_bus() might not return a valid pointer. (CVE-2020-25742)

  - hw/ide/pci.c in QEMU before 5.1.1 can trigger a NULL pointer dereference because it lacks a pointer check     before an ide_cancel_dma_sync call. (CVE-2020-25743)

  - eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest     can crash the QEMU process via packet data that lacks a valid Layer 3 protocol. (CVE-2020-27617)

  - A flaw was found in the memory management API of QEMU during the initialization of a memory region cache.
    This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO     operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial     of service. This flaw affects QEMU versions prior to 5.2.0. (CVE-2020-27821)

  - ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of     header data even if that exceeds the total packet length. (CVE-2020-29129)

  - ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer     index is not validated. (CVE-2020-29443)

  - A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0.
    This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of     service. The highest threat from this vulnerability is to system availability. (CVE-2020-35504)

  - A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in     versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw     allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service.
    The highest threat from this vulnerability is to system availability. (CVE-2020-35505)

  - A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This     flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges     on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as     system availability. (CVE-2021-20181)

  - An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It     may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A     privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
    (CVE-2021-20203)

  - An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of     QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an     interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said     issue while updating controller state fields and their subsequent processing. A privileged guest user may     use this flaw to crash the QEMU process on the host resulting in DoS scenario. (CVE-2021-20221)

  - A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI     I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req'     from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the     host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.
    (CVE-2021-3392)

  - A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions     up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get     bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the     host resulting in DoS scenario. (CVE-2021-3416)

  - A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a     single, large transfer request, to reduce the overhead and improve performance. The combined size of the     bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper     validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the     array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a     denial of service. (CVE-2021-3527)

  - Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions     up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-     gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime. (CVE-2021-3544)

  - An information disclosure vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of     QEMU in versions up to and including 6.0. The flaw exists in virgl_cmd_get_capset_info() in contrib/vhost-     user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit     this issue to leak memory from the host. (CVE-2021-3545)

  - An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of     QEMU in versions up to and including 6.0. The flaw occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET'     command from the guest. It could allow a privileged guest user to crash the QEMU process on the host,     resulting in a denial of service condition, or potential code execution with the privileges of the QEMU     process. (CVE-2021-3546)

  - An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw     exists in the bootp_input() function and could occur while processing a udp packet that is smaller than     the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of     uninitialized heap memory from the host. The highest threat from this vulnerability is to data     confidentiality. This flaw affects libslirp versions prior to 4.6.0. (CVE-2021-3592)

  - An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw     exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the     size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory     disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw     affects libslirp versions prior to 4.6.0. (CVE-2021-3593)

  - An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw     exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the     size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory     disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw     affects libslirp versions prior to 4.6.0. (CVE-2021-3595)

  - A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs     when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A     malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata,     resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the     host. (CVE-2021-3682)

  - An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions     prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-     bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this     flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the     host. (CVE-2021-3713)

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 Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9285 advisory.

    - imx7-ccm: add digprog mmio write method (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - tz-ppc: add dummy read/write methods (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - spapr_pci: add spapr msi read method (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - nvram: add nrf51_soc flash read method (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - prep: add ppc-parity write method (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - vfio: add quirk device write method (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - pci-host: designware: add pcie-msi read method (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - hw/pci-host: add pci-intack write method (Prasad J Pandit)  [Orabug: 31576552]  {CVE-2020-15469}
    - hw/intc/arm_gic: Fix interrupt ID in GICD_SGIR register (Philippe Mathieu-Daude)  [Orabug: 32470471]     {CVE-2021-20221}
    - memory: clamp cached translation in case it points to an MMIO region (Paolo Bonzini)  [Orabug: 32252673]     {CVE-2020-27821}

Tenable has extracted the preceding description block directly from the Oracle 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.

This update for qemu fixes the following issues :

CVE-2020-12829: Fix OOB access in sm501 device emulation (bsc#1172385)

CVE-2020-25723: Fix use-after-free in usb xhci packet handling (bsc#1178934)

CVE-2020-25084: Fix use-after-free in usb ehci packet handling (bsc#1176673)

CVE-2020-25625: Fix infinite loop (DoS) in usb hcd-ohci emulation (bsc#1176684)

CVE-2020-25624: Fix OOB access in usb hcd-ohci emulation (bsc#1176682)

CVE-2020-27617: Fix guest triggerable assert in shared network handling code (bsc#1178174)

CVE-2020-28916: Fix infinite loop (DoS) in e1000e device emulation (bsc#1179468)

CVE-2020-29443: Fix OOB access in atapi emulation (bsc#1181108)

CVE-2020-27821: Fix heap overflow in MSIx emulation (bsc#1179686)

CVE-2020-15469: Fix NULL pointer deref. (DoS) in mmio ops (bsc#1173612)

CVE-2021-20257: Fix infinite loop (DoS) in e1000 device emulation (bsc#1182577)

CVE-2021-3416: Fix OOB access (stack overflow) in rtl8139 NIC emulation (bsc#1182968)

CVE-2021-3416: Fix OOB access (stack overflow) in other NIC emulations (bsc#1182968)

CVE-2020-27616: Fix OOB access in ati-vga emulation (bsc#1178400)

CVE-2020-29129: Fix OOB access in SLIRP ARP/NCSI packet processing (bsc#1179466, CVE-2020-29130, bsc#1179467)

Fix package scripts to not use hard-coded paths for temporary working directories and log files (bsc#1182425)

Add split-provides through forsplits/13 to cover updates of SLE15-SP2 to SLE15-SP3, and openSUSE equivalents (bsc#1184064)

Added a few more usability improvements for our git packaging workflow

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9568 advisory.

  - In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer     dereference. (CVE-2020-15469)

  - A flaw was found in the memory management API of QEMU during the initialization of a memory region cache.
    This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO     operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial     of service. This flaw affects QEMU versions prior to 5.2.0. (CVE-2020-27821)

  - An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of     QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an     interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said     issue while updating controller state fields and their subsequent processing. A privileged guest user may     use this flaw to crash the QEMU process on the host resulting in DoS scenario. (CVE-2021-20221)

  - The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to     the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This     flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of     service or potential code execution. QEMU up to (including) 5.2.0 is affected by this. (CVE-2021-3409)

  - A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host     controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host,     resulting in a denial of service. (CVE-2020-27661)

  - An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing     transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid     values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The     highest threat from this vulnerability is to system availability. (CVE-2021-20257)

  - A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI     I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req'     from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the     host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.
    (CVE-2021-3392)

  - A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a     single, large transfer request, to reduce the overhead and improve performance. The combined size of the     bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper     validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the     array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a     denial of service. (CVE-2021-3527)

  - Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions     up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-     gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime. (CVE-2021-3544)

  - An information disclosure vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of     QEMU in versions up to and including 6.0. The flaw exists in virgl_cmd_get_capset_info() in contrib/vhost-     user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit     this issue to leak memory from the host. (CVE-2021-3545)

  - An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of     QEMU in versions up to and including 6.0. The flaw occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET'     command from the guest. It could allow a privileged guest user to crash the QEMU process on the host,     resulting in a denial of service condition, or potential code execution with the privileges of the QEMU     process. (CVE-2021-3546)

  - A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The issue occurs while     handling a PVRDMA_CMD_CREATE_MR command due to improper memory remapping (mremap). This flaw allows a     malicious guest to crash the QEMU process on the host. The highest threat from this vulnerability is to     system availability. (CVE-2021-3582)

  - An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions     prior to 6.1.0. The issue occurs while handling a PVRDMA_REG_DSRHIGH write from the guest due to     improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount     of memory, resulting in a denial of service. The highest threat from this vulnerability is to system     availability. (CVE-2021-3607)

  - A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to     6.1.0. The issue occurs while handling a PVRDMA_REG_DSRHIGH write from the guest and may result in a     crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. The highest     threat from this vulnerability is to system availability. (CVE-2021-3608)

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

This update for qemu fixes the following issues :

Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)

Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)

Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)

Fix use-after-free in usb iehci packet handling (CVE-2020-25084, bsc#1176673)

Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)

Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)

Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)

Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)

Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)

Fix heap overflow in MSIx emulation (CVE-2020-27821, bsc#1179686)

Fix NULL pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)

Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)

Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)

Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)

Fix OOB access in SLIRP ARP/NCSI packet processing (CVE-2020-29129, bsc#1179466, CVE-2020-29130, bsc#1179467)

Fix NULL pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386)

Fix issue where s390 guest fails to find zipl boot menu index (bsc#1183979)

Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)

Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)

Fix package scripts to not use hard-coded paths for temporary working directories and log files (bsc#1182425)

Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)

Apply fixes to qemu scsi passthrough with respect to timeout and error conditions, including using more correct status codes. (bsc#1178049)

Fix OOB access in ARM interrupt handling (CVE-2021-20221 bsc#1181933)

Make note that this patch previously included addresses (CVE-2020-13765 bsc#1172478)

Tweaks to spec file for better formatting, and remove not needed BuildRequires for e2fsprogs-devel and libpcap-devel

Fix vfio-pci device on s390 enters error state (bsc#1179725)

Fix PCI devices are unavailable after a subsystem reset. (bsc#1179726)

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

ID	名稱	產品	系列	已發布	已更新	嚴重性
148755	SUSE SLED15/ SLES15セキュリティ更新プログラム: qemu(SUSE-SU-2021:1243-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/3	medium
155325	Oracle Linux 8：virt: ol / and / virt-devel：rhel（ELSA-2021-1762）	Nessus	Oracle Linux Local Security Checks	2021/11/12	2024/11/1	medium
150299	Oracle Linux 7：qemu（ELSA-2021-9285）	Nessus	Oracle Linux Local Security Checks	2021/6/6	2024/11/1	medium
148751	SUSE SLES12セキュリティ更新プログラム: qemu(SUSE-SU-2021:1242-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/4	high
164678	Debian dla-3099 : qemu - security update	Nessus	Debian Local Security Checks	2022/9/5	2025/1/22	high
155325	Oracle Linux 8 : virt:ol / and / virt-devel:rhel (ELSA-2021-1762)	Nessus	Oracle Linux Local Security Checks	2021/11/12	2024/11/1	medium
157200	EulerOS 2.0 SP9 : qemu (EulerOS-SA-2022-1034)	Nessus	Huawei Local Security Checks	2022/1/28	2023/11/17	high
150299	Oracle Linux 7 : qemu (ELSA-2021-9285)	Nessus	Oracle Linux Local Security Checks	2021/6/6	2024/11/1	medium
148755	SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2021:1243-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/3	medium
155742	Oracle Linux 8 : kvm_utils (ELSA-2021-9568)	Nessus	Oracle Linux Local Security Checks	2021/12/1	2024/11/1	high
148751	SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1242-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/4	high

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