CVE-2022-0711

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.

This issue was introduced in HAProxy 1.9 with the Native HTTP Representation (HTX). Red Hat Enterprise Linux 6, 7, 8 and Red Hat Software Collections are not affected by this flaw, as they ship older versions of haproxy which do not include support for HTX.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.