安全公告/【CVE-2021-33503】

基本信息

漏洞名称:
受影响操作系统:Asianux
危险等级:高危
影响源码包:python-pip
CVSS评分:7.5
发现日期:2023-09-02
修复版本:python-pip-20.2.2-6

漏洞描述

An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.

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/python-pip/issues/I5QBQW
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33503
https://nvd.nist.gov/vuln/detail/CVE-2021-33503