CentOS Linux 8 [TuxCare] 安全更新：bpftool / kernel / kernel-core / kernel-cross-headers / 等多个漏洞 （CENTOS-STREAM8：CLSA-2024：1729874131）
high Nessus 插件 ID 366946
语言：
简介
CentOS Linux 主机缺少一个或多个安全更新。描述
CentOS Linux 8 主机上存在安装的程序包，该程序包受到 TuxCare CENTOS-STREAM8：CLSA-2024：2024：1729874131 公告中提及的多个漏洞的影响。- 已修复 Linux 内核中的下列漏洞：mm, slub: fix potential memoryleak in kmem_cache_open() In error path, the random_seq of slub cache might be leaked. Fix this by using
__kmem_cache_release() to release all the relevant resources. (CVE-2021-47466)
- 在版本低于 5.18.17 的 Linux 内核中的 x86 KVM 子系统中发现问题。非特权客户机用户可危害客户机内核，因为在某些 KVM_VCPU_PREEMPTED 情况下未正确处理 TLB 刷新操作。 (CVE-2022-39189)
- Linux 内核中存在一个释放后使用漏洞，可用于实现本地特权提升。要利用此漏洞，必须配置内核配置标记 CONFIG_TLS 或 CONFIG_XFRM_ESPINTCP，但该操作不需要任何权限。struct inet_connection_sock 的 icsk_ulp_data 存在一个释放后使用缺陷。启用 CONFIG_TLS 时，用户可在连接的 TCP 套接字上安装 TLS 上下文 (struct tls_context)。如果此套接字已断开连接并重新用作监听器，则上下文不会被清除。如果从监听器创建新套接字，上下文将被继承并会受到攻击。setsockopt TCP_ULP 操作不需要任何权限。我们建议升级过去的提交 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)
- 已修复 Linux 内核中的下列漏洞：drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL In certain types of chips, such as VEGA20, reading the amdgpu_regs_smc file could result in an abnormal null pointer access when the smc_rreg pointer is NULL. Below are the steps to reproduce this issue and the corresponding exception log: 1. Navigate to the directory:
/sys/kernel/debug/dri/0 2. Execute command: cat amdgpu_regs_smc 3. Exception Log:: [4005007.702554] BUG:
kernel NULL pointer dereference, address: 0000000000000000 [4005007.702562] #PF: supervisor instruction fetch in kernel mode [4005007.702567] #PF: error_code(0x0010) - not-present page [4005007.702570] PGD 0 P4D 0 [4005007.702576] Oops: 0010 [#1] SMP NOPTI [4005007.702581] CPU: 4 PID: 62563 Comm: cat Tainted: G OE 5.15.0-43-generic #46-Ubunt u [4005007.702590] RIP: 0010:0x0 [4005007.702598] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [4005007.702600] RSP: 0018:ffffa82b46d27da0 EFLAGS: 00010206 [4005007.702605] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffa82b46d27e68 [4005007.702609] RDX:
0000000000000001 RSI: 0000000000000000 RDI: ffff9940656e0000 [4005007.702612] RBP: ffffa82b46d27dd8 R08:
0000000000000000 R09: ffff994060c07980 [4005007.702615] R10: 0000000000020000 R11: 0000000000000000 R12:
00007f5e06753000 [4005007.702618] R13: ffff9940656e0000 R14: ffffa82b46d27e68 R15: 00007f5e06753000 [4005007.702622] FS: 00007f5e0755b740(0000) GS:ffff99479d300000(0000) knlGS:0000000000000000 [4005007.702626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [4005007.702629] CR2: ffffffffffffffd6 CR3: 00000003253fc000 CR4: 00000000003506e0 [4005007.702633] Call Trace: [4005007.702636] <TASK> [4005007.702640] amdgpu_debugfs_regs_smc_read+0xb0/0x120 [amdgpu] [4005007.703002] full_proxy_read+0x5c/0x80 [4005007.703011] vfs_read+0x9f/0x1a0 [4005007.703019] ksys_read+0x67/0xe0 [4005007.703023] __x64_sys_read+0x19/0x20 [4005007.703028] do_syscall_64+0x5c/0xc0 [4005007.703034] ? do_user_addr_fault+0x1e3/0x670 [4005007.703040] ? exit_to_user_mode_prepare+0x37/0xb0 [4005007.703047] ? irqentry_exit_to_user_mode+0x9/0x20 [4005007.703052] ? irqentry_exit+0x19/0x30 [4005007.703057] ? exc_page_fault+0x89/0x160 [4005007.703062] ? asm_exc_page_fault+0x8/0x30 [4005007.703068] entry_SYSCALL_64_after_hwframe+0x44/0xae [4005007.703075] RIP: 0033:0x7f5e07672992 [4005007.703079] Code:
c0 e9 b2 fe ff ff 50 48 8d 3d fa b2 0c 00 e8 c5 1d 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 e c 28 48 89 54 24 [4005007.703083] RSP: 002b:00007ffe03097898 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [4005007.703088] RAX:
ffffffffffffffda RBX: 0000000000020000 RCX: 00007f5e07672992 [4005007.703091] RDX: 0000000000020000 RSI:
00007f5e06753000 RDI: 0000000000000003 [4005007.703094] RBP: 00007f5e06753000 R08: 00007f5e06752010 R09:
00007f5e06752010 [4005007.703096] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000022000 [4005007.703099] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000 [4005007.703105] </TASK> [4005007.703107] Modules linked in: nf_tables libcrc32c nfnetlink algif_hash af_alg binfmt_misc nls_ iso8859_1 ipmi_ssif ast intel_rapl_msr intel_rapl_common drm_vram_helper drm_ttm_helper amd64_edac t tm edac_mce_amd kvm_amd ccp mac_hid k10temp kvm acpi_ipmi ipmi_si rapl sch_fq_codel ipmi_devintf ipm i_msghandler msr parport_pc ppdev lp parport mtd pstore_blk efi_pstore ramoops pstore_zone reed_solo mon ip_tables x_tables autofs4 ib_uverbs ib_core amdgpu(OE) amddrm_ttm_helper(OE) amdttm(OE) iommu_v 2 amd_sched(OE) amdkcl(OE) drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core drm igb ahci xhci_pci libahci i2c_piix4 i2c_algo_bit xhci_pci_renesas dca [4005007.703184] CR2: 0000000000000000 [4005007.703188] ---[ en ---truncated--- (CVE-2023-52817)
- 已修复 Linux 内核中的下列漏洞：tunnels: fix out of bounds access when building IPv6 PMTU error If the ICMPv6 error is built from a non-linear skb we get the following splat, BUG: KASAN: slab-out-of-bounds in do_csum+0x220/0x240 Read of size 4 at addr ffff88811d402c80 by task netperf/820 CPU: 0 PID: 820 Comm: netperf Not tainted 6.8.0-rc1+ #543 ... kasan_report+0xd8/0x110 do_csum+0x220/0x240 csum_partial+0xc/0x20 skb_tunnel_check_pmtu+0xeb9/0x3280 vxlan_xmit_one+0x14c2/0x4080 vxlan_xmit+0xf61/0x5c00 dev_hard_start_xmit+0xfb/0x510 __dev_queue_xmit+0x7cd/0x32a0 br_dev_queue_push_xmit+0x39d/0x6a0 Use skb_checksum instead of csum_partial who cannot deal with non-linear SKBs. (CVE-2024-26665)
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 CENTOS-STREAM8：CLSA-2024：1729874131 中的指南更新受影响的程序包。另见
插件详情
严重性: High
ID: 366946
文件名: tuxcare_centos_8_CLSA-2024-1729874131.nasl
版本: 1.1
类型: Local
代理: unix
发布时间: 2026/10/18
最近更新时间: 2026/10/18
支持的传感器: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
风险信息
VPR
风险因素: High
分数: 7.6
百分位: 98.67
Vendor
Vendor Severity: Important
CVSS v2
风险因素: Medium
基本分数: 6.8
时间分数: 5
矢量: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 分数来源: CVE-2024-46821
CVSS v3
风险因素: High
基本分数: 7.8
时间分数: 6.8
矢量: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
时间矢量: CVSS:3.0/E:U/RL:O/RC:C
漏洞信息
必需的 KB 项: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party
易利用性: No known exploits are available
补丁发布日期: 2024/10/25
漏洞发布日期: 2021/7/21
参考资料信息
CVE: CVE-2021-47466, CVE-2022-39189, CVE-2023-0461, CVE-2023-52817, CVE-2024-26665, CVE-2024-38588, CVE-2024-40958, CVE-2024-40972, CVE-2024-41013, CVE-2024-41039, CVE-2024-41073, CVE-2024-42265, CVE-2024-42280, CVE-2024-42284, CVE-2024-42285, CVE-2024-42301, CVE-2024-43830, CVE-2024-43882, CVE-2024-44954, CVE-2024-44977, CVE-2024-44987, CVE-2024-46673, CVE-2024-46722, CVE-2024-46723, CVE-2024-46724, CVE-2024-46725, CVE-2024-46731, CVE-2024-46738, CVE-2024-46744, CVE-2024-46746, CVE-2024-46759, CVE-2024-46800, CVE-2024-46811, CVE-2024-46813, CVE-2024-46818, CVE-2024-46821, CVE-2024-46842, CVE-2024-47661
CLSA: 2024:1729874131