检测

Azure Linux 3.0 安全更新内核 (CVE-2025-38097)

medium Nessus 插件 ID 295304

语言：

简介

远程 Azure Linux 主机缺少一个或多个安全更新。

描述

远程 Azure Linux 3.0 主机上安装的内核版本低于 测试的版本。因此，该程序受到 CVE-2025-38097 公告中提及的一个漏洞影响。

 - 已修复 Linux 内核中的下列漏洞：espintcp: remove encap socket caching to avoid reference leak The current scheme for caching the encap socket can lead to reference leaks when we try to delete the netns. The reference chain is: xfrm_state -> enacp_sk -> netns Since the encap socket is a userspace socket, it holds a reference on the netns. If we delete the espintcp state (through flush or individual delete) before removing the netns, the reference on the socket is dropped and the netns is correctly deleted. Otherwise, the netns May not be reachable anymore (if all processes within the ns have terminated), so we cannot delete the xfrm state to drop its reference on the socket. This patch results in a small (~2% in my tests) performance regression. A GC-type mechanism could be added for the socket cache, to clear references if the state hasn't been used recently, but it's a lot more complex than just not caching the socket. (CVE-2025-38097)

请注意，Nessus 尚未测试此问题，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

更新受影响的程序包。

另见

https://nvd.nist.gov/vuln/detail/CVE-2025-38097

插件详情

严重性: Medium

ID: 295304

文件名: azure_linux_CVE-2025-38097.nasl

版本: 1.1

类型: local

发布时间: 2026/1/22

最近更新时间: 2026/1/22

支持的传感器: Nessus

风险信息

VPR

风险因素: Medium

分数: 4.4

CVSS v2

风险因素: Medium

基本分数: 4.6

时间分数: 3.4

矢量: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS 分数来源: CVE-2025-38097

CVSS v3

风险因素: Medium

基本分数: 5.5

时间分数: 4.8

矢量: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

时间矢量: CVSS:3.0/E:U/RL:O/RC:C

漏洞信息

CPE: p-cpe:/a:microsoft:azure_linux:kernel-debuginfo, p-cpe:/a:microsoft:azure_linux:kernel-devel, p-cpe:/a:microsoft:azure_linux:kernel-drivers-gpu, p-cpe:/a:microsoft:azure_linux:python3-perf, p-cpe:/a:microsoft:azure_linux:kernel-docs, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:kernel, p-cpe:/a:microsoft:azure_linux:kernel-drivers-sound, p-cpe:/a:microsoft:azure_linux:bpftool, p-cpe:/a:microsoft:azure_linux:kernel-drivers-intree-amdgpu, p-cpe:/a:microsoft:azure_linux:kernel-drivers-accessibility, p-cpe:/a:microsoft:azure_linux:kernel-tools

必需的 KB 项: Host/local_checks_enabled, Host/AzureLinux/release, Host/AzureLinux/rpm-list, Host/cpu

易利用性: No known exploits are available

补丁发布日期: 2025/8/12

漏洞发布日期: 2025/6/12

参考资料信息

CVE: CVE-2025-38097