安全公告/【CVE-2020-12244】
基本信息
受影响操作系统:桌面操作系统
危险等级:高危
影响源码包:pdns-recursor
CVSS评分:7.5
发现日期:2022-03-01
修复版本:4.1.11-1+b10
漏洞描述
An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.
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