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CVE-2019-18679

Published: 26 November 2019

An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.

Notes

AuthorNote
mdeslaur
same patch as CVE-2019-18678
Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
squid
Launchpad, Ubuntu, Debian
bionic Does not exist

disco
Released (4.4-1ubuntu2.3)
eoan
Released (4.8-1ubuntu2.1)
focal
Released (4.9-2ubuntu1)
groovy
Released (4.9-2ubuntu1)
hirsute
Released (4.9-2ubuntu1)
precise Does not exist

trusty Does not exist

upstream
Released (4.9-1)
xenial Does not exist

Patches:
upstream: http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patch
squid3
Launchpad, Ubuntu, Debian
bionic
Released (3.5.27-1ubuntu1.4)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

precise Ignored
(end of ESM support, was needs-triage)
trusty Does not exist

upstream Needs triage

xenial
Released (3.5.12-1ubuntu7.9)