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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
bionic Does not exist

eoan
Released (4.8-1ubuntu2.3)
focal
Released (4.10-1ubuntu1.1)
groovy
Released (4.10-1ubuntu2)
hirsute
Released (4.10-1ubuntu2)
precise Does not exist

trusty Does not exist

upstream
Released (4.11)
xenial Does not exist

squid3
Launchpad, Ubuntu, Debian
bionic
Released (3.5.27-1ubuntu1.6)
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 (3.5.12-1ubuntu7.11)