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CVE-2022-0711

Published: 2 March 2022

A flaw was found in the way HAProxy processed HTTP responses containing the "Set-Cookie2" header. This flaw could allow an attacker to send crafted HTTP response packets which lead to an infinite loop, eventually resulting in a denial of service condition. The highest threat from this vulnerability is availability.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
haproxy
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal
Released (2.0.13-2ubuntu0.5)
impish
Released (2.2.9-2ubuntu2.1)
trusty Ignored
(end of standard support)
upstream Needs triage

xenial Not vulnerable
(code not present)
jammy Not vulnerable
(2.4.14-1ubuntu1)
Patches:
upstream: https://git.haproxy.org/?p=haproxy.git;a=commit;h=bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8 (v2.6-dev2)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H