检测

Ubuntu 21.04：Linux 内核漏洞 (USN-4950-1)

high Nessus 插件 ID 149406

语言：

简介

远程主机缺少一个或多个安全更新。

描述

远程 Ubuntu 21.04 主机上安装的程序包受到 USN-4950-1 公告中提及的多个漏洞的影响。请注意，Nessus 尚未测试此问题，而是只依赖于应用程序自我报告的版本号。

解决方案

更新受影响的程序包。

另见

https://ubuntu.com/security/notices/USN-4950-1

插件详情

严重性: High

ID: 149406

文件名: ubuntu_USN-4950-1.nasl

版本: 1.7

类型: local

代理: unix

发布时间: 2021/5/12

最近更新时间: 2023/1/17

支持的传感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

风险信息

VPR

风险因素: Critical

分数: 9.0

CVSS v2

风险因素: High

基本分数: 7.2

时间分数: 6.3

矢量: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS 分数来源: CVE-2021-3491

CVSS v3

风险因素: High

基本分数: 8.8

时间分数: 8.4

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

时间矢量: CVSS:3.0/E:H/RL:O/RC:C

漏洞信息

CPE: cpe:/o:canonical:ubuntu_linux:21.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1005-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1006-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1007-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1007-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1007-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1008-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1008-raspi-nolpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-64k-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-64k-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-oem-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi-nolpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-20.04-edge

必需的 KB 项: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

可利用: true

易利用性: Exploits are available

补丁发布日期: 2021/5/11

漏洞发布日期: 2021/5/11

可利用的方式

Core Impact

Metasploit (Linux eBPF ALU32 32-bit Invalid Bounds Tracking LPE)

参考资料信息

CVE: CVE-2021-3489, CVE-2021-3490, CVE-2021-3491

USN: 4950-1