Linux Distros 未修补的漏洞: CVE-2024-56685
high Nessus 插件 ID 230833
语言：
简介
Linux/Unix 主机上安装的一个或多个程序包存在漏洞，但供应商表示不会修补此漏洞。描述
Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。- 在 Linux 内核中，已解决以下漏洞： ASoC: mediatek: Check num_codecs is not zero to avoid panic during probe Following commit 13f58267cda3 (ASoC: soc.h: don't create dummy Component via COMP_DUMMY()), COMP_DUMMY() became an array with zero length, and only gets populated with the dummy struct after the card is registered. Since the sound card driver's probe happens before the card registration, accessing any of the members of a dummy component during probe will result in undefined behavior. This can be observed in the mt8188 and mt8195 machine sound drivers. By omitting a dai link subnode in the sound card's node in the Devicetree, the default uninitialized dummy codec is used, and when its dai_name pointer gets passed to strcmp() it results in a null pointer dereference and a kernel panic. In addition to that, set_card_codec_info() in the generic helpers file, mtk-soundcard-driver.c, will populate a dai link with a dummy codec when a dai link node is present in DT but with no codec property. The result is that at probe time, a dummy codec can either be uninitialized with num_codecs = 0, or be an initialized dummy codec, with num_codecs = 1 and dai_name = snd-soc-dummy-dai. In order to accommodate for both situations, check that num_codecs is not zero before accessing the codecs' fields but still check for the codec's dai name against snd-soc-dummy-dai as needed. While at it, also drop the check that dai_name is not null in the mt8192 driver, introduced in commit 4d4e1b6319e5 (ASoC: mediatek:
mt8192: Check existence of dai_name before dereferencing), as it is actually redundant given the preceding num_codecs != 0 check. (CVE-2024-56685)
请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。
解决方案
目前尚未有任何已知的解决方案。插件详情
严重性: High
ID: 230833
文件名: unpatched_CVE_2024_56685.nasl
版本: 1.1
类型: local
代理: unix
系列: Misc.
发布时间: 2025/3/6
最近更新时间: 2025/3/6
支持的传感器: Nessus Agent, Nessus
风险信息
VPR
风险因素: Medium
分数: 5.9
CVSS v2
风险因素: High
基本分数: 7.2
时间分数: 5.3
矢量: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 分数来源: CVE-2024-56685
CVSS v3
风险因素: High
基本分数: 7
时间分数: 6.1
矢量: CVSS:3.0/AV:L/AC:H/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/cpu, global_settings/vendor_unpatched
易利用性: No known exploits are available
漏洞发布日期: 2024/12/28
参考资料信息
CVE: CVE-2024-56685