Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2019-12525

Published: 11 July 2019

An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

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

cosmic Ignored
(end of life)
disco
Released (4.4-1ubuntu2.2)
trusty Does not exist

upstream
Released (4.8)
xenial Does not exist

Patches:
upstream: https://github.com/squid-cache/squid/commit/fb73497a6977ce11170a48a547e16d4a50c3bac2 (master)
upstream: https://github.com/squid-cache/squid/commit/409956536647b3a05ee1e367424a24ae6b8f13fd (4.x)

squid3
Launchpad, Ubuntu, Debian
bionic
Released (3.5.27-1ubuntu1.3)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream Needed

xenial
Released (3.5.12-1ubuntu7.8)
Patches:


upstream: https://github.com/squid-cache/squid/commit/ec0d0f39cf28da14eead0ba5e777e95855bc2f67 (3.x)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H