CentOS Linux 7 [TuxCare] 安全更新:bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / 等多个漏洞 (CENTOS7:CLSA-2024:1724693366)

high Nessus 插件 ID 352493

简介

CentOS Linux 主机缺少一个或多个安全更新。

描述

CentOS Linux 7 主机上存在安装的程序包,该程序包受到 TuxCare CENTOS7:CLSA-2024:2024:1724693366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:tty: Fix out-of-bound vmalloc access in imageblit This issue happens when a userspace program does an ioctl FBIOPUT_VSCREENINFO passing the fb_var_screeninfo struct containing only the fields xres, yres, and bits_per_pixel with values. If this struct is the same as the previous ioctl, the vc_resize() detects it and doesn't call the resize_screen(), leaving the fb_var_screeninfo incomplete. And this leads to the updatescrollmode() calculates a wrong value to fbcon_display->vrows, which makes the real_y() return a wrong value of y, and that value, eventually, causes the imageblit to access an out-of-bound address value. To solve this issue I made the resize_screen() be called even if the screen does not need any resizing, so it will fix and fill the fb_var_screeninfo independently. (CVE-2021-47383)

- 之前 6.3 Linux 内核中的 IPv6 实现具有可轻松消耗的 net/ipv6/route.c max_size 阈值,例如,当通过原始套接字循环发送 IPv6 数据包时导致拒绝服务(网络无法连接错误)。(CVE-2023-52340)

- 已修复 Linux 内核中的下列漏洞:drivers/amd/pm: fix a use-after-free in kv_parse_power_table When ps allocated by kzalloc equals to NULL, kv_parse_power_table frees adev->pm.dpm.ps that allocated before. However, after the control flow goes through the following call chains: kv_parse_power_table |-> kv_dpm_init |-> kv_dpm_sw_init |-> kv_dpm_fini The adev->pm.dpm.ps is used in the for loop of kv_dpm_fini after its first free in kv_parse_power_table and causes a use-after-free bug. (CVE-2023-52469)

- 在 Linux 内核的 ext4 中,在 fs/ext4/super.c 的 __ext4_remount 中发现一个释放后使用缺陷。本地用户可利用此缺陷,在释放旧配额文件名以触发潜在的故障时,造成信息泄漏问题,从而导致释放后使用。(CVE-2024-0775)

- Linux 中的整数溢出或环绕漏洞。Linux、x86、ARM(md、raid、raid5 模块)上的 Linux 内核允许强制整数溢出。(CVE-2024-23307)

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 CENTOS7:CLSA-2024:1724693366 中的指南更新受影响的程序包。

另见

https://cve.tuxcare.com/els/releases/CLSA-2024:1724693366

http://www.nessus.org/u?d30a729c

插件详情

严重性: High

ID: 352493

文件名: tuxcare_centos_7_CLSA-2024-1724693366.nasl

版本: 1.1

类型: Local

代理: unix

发布时间: 2026/9/30

最近更新时间: 2026/9/30

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: Medium

分数: 6.9

百分位: 96.5

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-2024-39494

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: 2024/8/26

漏洞发布日期: 2021/7/21

参考资料信息

CVE: CVE-2021-47383, CVE-2023-52340, CVE-2023-52469, CVE-2024-0775, CVE-2024-23307, CVE-2024-26668, CVE-2024-26855, CVE-2024-26882, CVE-2024-26923, CVE-2024-26934, CVE-2024-27020, CVE-2024-36960, CVE-2024-38570, CVE-2024-39494, CVE-2024-42228

CLSA: 2024:1724693366