CVE-2020-8517

Published: 04 February 2020

An issue was discovered in Squid before 4.10. Due to incorrect input validation, the NTLM authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer. On systems with memory access protections, this can result in the helper process being terminated unexpectedly. This leads to the Squid process also terminating and a denial of service for all clients using the proxy.

Priority

Medium

CVSS 3 base score: 7.5

Status

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

Ubuntu 20.10 (Groovy Gorilla)
Released (4.9-2ubuntu4)
Ubuntu 20.04 LTS (Focal Fossa)
Released (4.9-2ubuntu4)
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

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-6982f1187a26557e582172965e266f544ea562a5.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 (3.5.27-1ubuntu1.5)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (3.5.12-1ubuntu7.10)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Needs triage

Patches:
Upstream: http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-c62d2b43ad4962ea44aa0c5edb4cc99cb83a413d.patch