安全公告/【CVE-2020-29374】

基本信息

漏洞名称:
受影响操作系统:Asianux
危险等级:低危
影响源码包:kernel-4.19
CVSS评分:3.6
发现日期:2023-09-27
修复版本:4.19.90-5069

漏洞描述

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

修复方式

sudo apt update && sudo apt dist-upgrade

漏洞判定

执行命令apt policy PackageName获取软件包版本号，版本小于修复版本，则受此漏洞影响，版本大于等于修复版本，则此漏洞已修复

补丁

参考

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29374
https://nvd.nist.gov/vuln/detail/CVE-2020-29374