CVE-2021-33620

Published: 28 May 2021

Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server.

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
squid
Launchpad, Ubuntu, Debian
Upstream
Released (4.15,4.13-10)
Ubuntu 21.04 (Hirsute Hippo)
Released (4.13-1ubuntu4.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (4.13-1ubuntu2.2)
Ubuntu 20.04 LTS (Focal Fossa)
Released (4.10-1ubuntu1.4)
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-4-1e05a85bd28c22c9ca5d3ac9f5e86d6269ec0a8c.patch
Upstream: http://www.squid-cache.org/Versions/v5/changesets/squid-5-8af775ed98bfd610f9ce762fe177e01b2675588c.patch
Upstream: https://github.com/squid-cache/squid/commit/1e05a85bd28c22c9ca5d3ac9f5e86d6269ec0a8c
squid3
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.5.27-1ubuntu1.11)
Ubuntu 16.04 ESM (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist