安全公告/【CVE-2023-34256】

基本信息

漏洞名称:
受影响操作系统:Asianux
危险等级:中危
影响源码包:kernel-4.19
CVSS评分:5.5
发现日期:2023-09-27
修复版本:4.19.90-5069

漏洞描述

** DISPUTED ** An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an offset. NOTE: this is disputed by third parties because the kernel is not intended to defend against attackers with the stated "When modifying the block device while it is mounted by the filesystem" access.

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-2023-34256
https://nvd.nist.gov/vuln/detail/CVE-2023-34256