漏洞描述
The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later.
影响产品
暂无结构化产品信息。
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
www.squid-cache.orghttp://www.squid-cache.org/Versions/v4/changesets/SQUID-2018_2.patch↗github.comhttps://github.com/squid-cache/squid/pull/129/files↗www.squid-cache.orghttp://www.squid-cache.org/Advisories/SQUID-2018_2.txt↗usn.ubuntu.comhttps://usn.ubuntu.com/4059-2/↗www.squid-cache.orghttp://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_2.patch↗www.debian.orghttps://www.debian.org/security/2018/dsa-4122↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2018/02/msg00001.html↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2018/02/msg00002.html↗usn.ubuntu.comhttps://usn.ubuntu.com/3557-1/↗