CVE-2020-11945

Published: 23 April 2020

An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
squid
Launchpad, Ubuntu, Debian
Upstream
Released (4.11)
Ubuntu 20.10 (Groovy Gorilla)
Released (4.10-1ubuntu2)
Ubuntu 20.04 LTS (Focal Fossa)
Released (4.10-1ubuntu1.1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (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-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch
squid3
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.5.27-1ubuntu1.6)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (3.5.12-1ubuntu7.11)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist