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CVE-2021-46784

Published: 31 December 2021

In Squid 3.x through 3.5.28, 4.x through 4.17, and 5.x before 5.6, due to improper buffer management, a Denial of Service can occur when processing long Gopher server responses.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

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

focal
Released (4.10-1ubuntu1.6)
impish
Released (4.13-10ubuntu5.1)
jammy
Released (5.2-1ubuntu4.1)
kinetic
Released (5.2-1ubuntu5)
lunar
Released (5.2-1ubuntu5)
mantic
Released (5.2-1ubuntu5)
trusty Does not exist

upstream
Released (5.6)
xenial Does not exist

Patches:
upstream: https://github.com/squid-cache/squid/commit/780c4ea1b4c9d2fb41f6962aa6ed73ae57f74b2b
upstream: https://github.com/squid-cache/squid/commit/1740315dc85ade1965934b63c0a3244860bac0a1
upstream: http://www.squid-cache.org/Versions/v5/changesets/SQUID-2021_7.patch
squid3
Launchpad, Ubuntu, Debian
bionic
Released (3.5.27-1ubuntu1.13)
focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

trusty Does not exist

upstream Needs triage

xenial Needed

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H