CVE-2019-12523

Published: 26 November 2019

An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

Priority

Medium

CVSS 3 base score: 9.1

Status

Package Release Status
squid
Launchpad, Ubuntu, Debian
Upstream
Released (4.9-1)
Ubuntu 21.04 (Hirsute Hippo)
Released (4.9-2ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (4.9-2ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-fbbdf75efd7a5cc244b4886a9d42ea458c5a3a73.patch
squid3
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.5.27-1ubuntu1.7)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (3.5.12-1ubuntu7.12)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist