安全公告/【CVE-2023-29469】

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:libxml2
CVSS评分:6.5
发现日期:2023-06-07
修复版本:libxml2-2.9.10-36

漏洞描述

An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).

修复方式

yum update PackageName

漏洞判定

执行命令yum info 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://gitee.com/src-openeuler/libxml2/issues/I6UW9H
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29469
https://nvd.nist.gov/vuln/detail/CVE-2023-29469