安全公告/【CVE-2019-12519】

基本信息

漏洞描述

An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow.

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

修复方式

sudo apt update && sudo apt dist-upgrade

参考

https://security-tracker.debian.org/tracker/CVE-2019-12519 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12519 https://nvd.nist.gov/vuln/detail/CVE-2019-12519