Linux Distros 未修补的漏洞:CVE-2026-92707

medium Nessus 插件 ID 367354

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。

- MessagePack for C# 是 C# 的 MessagePack 序列化程序。在 2.5.303 和 3.1.9之前,通过 PrimitiveObjectFormatter 将攻击者控制的 MessagePack 数据反序列化为 System.Object 可造成过量内存分配。格式化程序会在配置的对象图形深度限制拒绝输入之前,从每个声明的数组长度分配一个 object[],而嵌套数组标头可以重复使用相同的结尾未读字节以满足每个标头长度验证。因此,相对较小的有效负载可以同时保持许多大型阵列的活动。当攻击者可重复提交此类数据时,分配可造成严重的托管堆压力、过量垃圾收集、进程终止或服务丢失。暴露要求应用程序通过受影响的格式化程序路径反序列化不受信任的数据,并允许重复的攻击者控制的提交,例如具有对象参数并启用 AddMessagePackProtocol() 的可访问 ASP.NET Core SignalR 中心方法。此问题在版本 2.5.303 和 3.1.9中已修复。
(CVE-2026-92707)

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。

另见

https://access.redhat.com/security/cve/cve-2026-92707

https://ubuntu.com/security/CVE-2026-92707

插件详情

严重性: Medium

ID: 367354

文件名: unpatched_CVE_2026_92707.nasl

版本: 1.2

类型: Local

代理: unix

系列: Misc.

发布时间: 2026/10/19

最近更新时间: 2026/10/20

支持的传感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

风险信息

VPR

风险因素: Medium

分数: 4

百分位: 53.43

CVSS v2

风险因素: Medium

基本分数: 5

时间分数: 4.3

矢量: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS 分数来源: CVE-2026-92707

CVSS v3

风险因素: Medium

基本分数: 5.3

时间分数: 4.9

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

时间矢量: CVSS:3.0/E:U/RL:U/RC:C

漏洞信息

CPE: cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:dotnet10, p-cpe:/a:canonical:ubuntu_linux:dotnet11, p-cpe:/a:canonical:ubuntu_linux:dotnet6, p-cpe:/a:canonical:ubuntu_linux:dotnet7, p-cpe:/a:canonical:ubuntu_linux:dotnet8, p-cpe:/a:centos:centos:aspnetcore-runtime-10.0, p-cpe:/a:centos:centos:aspnetcore-runtime-8.0, p-cpe:/a:centos:centos:aspnetcore-runtime-9.0, p-cpe:/a:centos:centos:aspnetcore-runtime-dbg-10.0, p-cpe:/a:centos:centos:aspnetcore-runtime-dbg-8.0, p-cpe:/a:centos:centos:aspnetcore-runtime-dbg-9.0, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-10.0, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-8.0, p-cpe:/a:centos:centos:aspnetcore-targeting-pack-9.0, p-cpe:/a:centos:centos:dotnet-apphost-pack-10.0, p-cpe:/a:centos:centos:dotnet-apphost-pack-8.0, p-cpe:/a:centos:centos:dotnet-apphost-pack-9.0, p-cpe:/a:centos:centos:dotnet-host, p-cpe:/a:centos:centos:dotnet-hostfxr-10.0, p-cpe:/a:centos:centos:dotnet-hostfxr-8.0, p-cpe:/a:centos:centos:dotnet-hostfxr-9.0, p-cpe:/a:centos:centos:dotnet-runtime-10.0, p-cpe:/a:centos:centos:dotnet-runtime-8.0, p-cpe:/a:centos:centos:dotnet-runtime-9.0, p-cpe:/a:centos:centos:dotnet-runtime-dbg-10.0, p-cpe:/a:centos:centos:dotnet-runtime-dbg-8.0, p-cpe:/a:centos:centos:dotnet-runtime-dbg-9.0, p-cpe:/a:centos:centos:dotnet-sdk-10.0-source-built-artifacts, p-cpe:/a:centos:centos:dotnet-sdk-10.0, p-cpe:/a:centos:centos:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:centos:centos:dotnet-sdk-8.0, p-cpe:/a:centos:centos:dotnet-sdk-9.0-source-built-artifacts, p-cpe:/a:centos:centos:dotnet-sdk-9.0, p-cpe:/a:centos:centos:dotnet-sdk-aot-10.0, p-cpe:/a:centos:centos:dotnet-sdk-aot-9.0, p-cpe:/a:centos:centos:dotnet-sdk-dbg-10.0, p-cpe:/a:centos:centos:dotnet-sdk-dbg-8.0, p-cpe:/a:centos:centos:dotnet-sdk-dbg-9.0, p-cpe:/a:centos:centos:dotnet-targeting-pack-10.0, p-cpe:/a:centos:centos:dotnet-targeting-pack-8.0, p-cpe:/a:centos:centos:dotnet-targeting-pack-9.0, p-cpe:/a:centos:centos:dotnet-templates-10.0, p-cpe:/a:centos:centos:dotnet-templates-8.0, p-cpe:/a:centos:centos:dotnet-templates-9.0, p-cpe:/a:centos:centos:dotnet10.0, p-cpe:/a:centos:centos:dotnet8.0, p-cpe:/a:centos:centos:dotnet9.0, p-cpe:/a:centos:centos:dotnet, p-cpe:/a:centos:centos:netstandard-targeting-pack-2.1, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-10.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-8.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-9.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-dbg-10.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-dbg-8.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-dbg-9.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-10.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-8.0, p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-host, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-dbg-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-dbg-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-dbg-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-10.0-source-built-artifacts, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-8.0-source-built-artifacts, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-9.0-source-built-artifacts, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-aot-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-aot-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-dbg-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-dbg-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-dbg-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-10.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-8.0, p-cpe:/a:redhat:enterprise_linux:dotnet-templates-9.0, p-cpe:/a:redhat:enterprise_linux:dotnet10.0, p-cpe:/a:redhat:enterprise_linux:dotnet8.0, p-cpe:/a:redhat:enterprise_linux:dotnet9.0, p-cpe:/a:redhat:enterprise_linux:dotnet, p-cpe:/a:redhat:enterprise_linux:netstandard-targeting-pack-2.1

必需的 KB 项: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

易利用性: No known exploits are available

漏洞发布日期: 2026/10/15

参考资料信息

CVE: CVE-2026-92707