CVE-2018-1000027

Published: 29 January 2018

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.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
squid3
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.5.23-5ubuntu2)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (3.5.12-1ubuntu7.5)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [3.3.8-1ubuntu6.11])
Patches:
Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_2.patch