AlmaLinux 9.2 [TuxCare] 安全更新：bpftool / kernel / kernel-abi-stablelists / kernel-core 等多个漏洞 （ALMALINUX9.2：CLSA-2024：1727352561）
high Nessus 插件 ID 360114
语言：
简介
AlmaLinux 主机缺少一个或多个安全更新。描述
AlmaLinux 9.2 主机上存在安装的程序包，该程序包受到 TuxCare ALMALINUX9.2：CLSA-2024：1727352561 1公告中提及的多个漏洞的影响。- 在某些 Intel(R) 处理器的某些矢量执行单元中进行瞬态执行攻击后，可通过微架构状态造成信息暴露，经过身份验证的用户可能借此通过本地访问造成信息泄露。(CVE-2022-40982)
- 已修复 Linux 内核中的下列漏洞：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)
- 可以利用 Linux 内核的 Linux 内核性能事件 (perf) 中的堆越界写入漏洞实现本地特权提升。如果在事件的 sibling_list 小于其子事件的 sibling_list 时调用 perf_read_group()，则它可以递增或写入分配的缓冲区之外的内存位置。我们建议升级过去的提交 32671e3799ca2e4590773fd0e63aaa4229e50c06。(CVE-2023-5717)
- 在 6.6.7 之前的 Linux 内核中，不受信任的 VMM 可在任意给定点触发 int80 syscall 处理。
这与 arch/x86/coco/tdx/tdx.c 和 arch/x86/mm/mem_encrypt_amd.c 相关。(CVE-2024-25744)
- 已修复 Linux 内核中的下列漏洞：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)
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。
解决方案
根据 TuxCare 公告 ALMALINUX9.2：CLSA-2024：1727352561 中的指南更新受影响的程序包。另见
插件详情
严重性: High
ID: 360114
文件名: tuxcare_alma_linux_9.2_CLSA-2024-1727352561.nasl
版本: 1.1
类型: Local
发布时间: 2026/10/1
最近更新时间: 2026/10/1
支持的传感器: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
风险信息
VPR
风险因素: Medium
分数: 6.9
百分位: 97.35
Vendor
Vendor Severity: Important
CVSS v2
风险因素: Medium
基本分数: 6.8
时间分数: 5.3
矢量: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 分数来源: CVE-2024-46673
CVSS v3
风险因素: High
基本分数: 8.8
时间分数: 7.9
矢量: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
时间矢量: CVSS:3.0/E:P/RL:O/RC:C
CVSS 分数来源: CVE-2024-25744
漏洞信息
必需的 KB 项: Host/OS/extended-third-party, Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu
可利用: true
易利用性: Exploits are available
补丁发布日期: 2024/9/26
漏洞发布日期: 2021/7/21
参考资料信息
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