AlmaLinux 9.2 [TuxCare] 安全性更新：bpftool / kernel / kernel-abi-stablelists / kernel-core / etc 多個弱點 （ALMALINUX9.2：CLSA-2024：1727352561）
high Nessus Plugin ID 360114
語言:
概要
AlmaLinux 主機缺少一或多個安全性更新。說明
AlmaLinux 9.2 主機已安裝的套件會受到 TuxCare ALMALINUX9.2：CLSA-2024：1727352561 公告中提及的多個弱點影響。- 在某些 Intel(R) 處理器的特定向量執行單位中，進行瞬態執行後，透過微架構狀態可造成資訊洩漏，經驗證的使用者可藉此透過本機存取權導致資訊洩漏。(CVE-2022-40982)
- 已解決 Linux 核心中的下列弱點：netfilter: nftables: exthdr: fix 4-byte stack OOB write If priv->len is a multiple of 4, then dst[len / 4] can write past the destination array which leads to stack corruption. This construct is necessary to clean the remainder of the register in case ->len is NOT a multiple of the register size, so make it conditional just like nft_payload.c does.
The bug was added in 4.1 cycle and then copied/inherited when tcp/sctp and ip option support was added.
Bug reported by Zero Day Initiative project (ZDI-CAN-21950, ZDI-CAN-21951, ZDI-CAN-21961).
(CVE-2023-52628)
- 攻擊者可惡意利用 Linux 核心的 Linux 核心效能事件 (perf) 元件中的堆積超出邊界寫入弱點來提升本機權限。如果在事件的 sibling_list 小於其子事件的 sibling_list 的情形下呼叫 perf_read_group()，則可遞增或寫入已配置緩衝區之外的記憶體位置。建議升級過去的 commit 32671e3799ca2e4590773fd0e63aaa4229e50c06。(CVE-2023-5717)
- 在 6.6.7 之前的 Linux 核心中，未受信任的 VMM 可在任何指定點觸發 int80 系統呼叫處理。
這與 arch/x86/coco/tdx/tdx.c 和 arch/x86/mm/mem_encrypt_amd.c 有關。(CVE-2024-25744)
- 已解決 Linux 核心中的下列弱點：net: bridge: xmit: make sure we have at least eth header len bytes syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65
__netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline]
__bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187
____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f (CVE-2024-38538)
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。
解決方案
根據 TuxCare 公告 ALMALINUX9.2：CLSA-2024：1727352561 中的指引更新受影響的套件。另請參閱
Plugin 詳細資訊
嚴重性: High
ID: 360114
檔案名稱: tuxcare_alma_linux_9.2_CLSA-2024-1727352561.nasl
版本: 1.1
類型: Local
已發布: 2026/10/1
已更新: 2026/10/1
支援的感應器: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
風險資訊
VPR
風險因素: Medium
分數: 6.9
百分位數: 97.35
Vendor
Vendor Severity: Important
CVSS v2
風險因素: Medium
基本分數: 6.8
時間性分數: 5.3
媒介: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 評分資料來源: CVE-2024-46673
CVSS v3
風險因素: High
基本分數: 8.8
時間性分數: 7.9
媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
時間媒介: CVSS:3.0/E:P/RL:O/RC:C
CVSS 評分資料來源: CVE-2024-25744
弱點資訊
必要的 KB 項目: Host/OS/extended-third-party, Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu
可被惡意程式利用: true
可輕鬆利用: Exploits are available
修補程式發佈日期: 2024/9/26
弱點發布日期: 2021/7/21
參考資訊
CVE: CVE-2022-40982, CVE-2023-52628, CVE-2023-5717, CVE-2024-25744, CVE-2024-38538, CVE-2024-38555, CVE-2024-38570, CVE-2024-39471, CVE-2024-40956, CVE-2024-40984, CVE-2024-41000, CVE-2024-41040, CVE-2024-41073, CVE-2024-42284, CVE-2024-42285, CVE-2024-42301, CVE-2024-44987, CVE-2024-46673
CLSA: 2024:1727352561