CVE-2022-0711
haproxy - security update
7.5
HIGH
CVSS 3.1
EPSS 66.5%
Description
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.
How to fix CVE-2022-0711
To remediate CVE-2022-0711, upgrade the affected package to a fixed version below.
- —upgrade to 2.2.21-r0 or later
- —upgrade to 2.2.21 or later
- —upgrade to 2.2.9-2+deb11u3 or later
- —upgrade to 2.2.9-2+deb11u3 or later
Is CVE-2022-0711 being exploited?
Likely — EPSS is 66.5%, placing CVE-2022-0711 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (4)
- from 0, < 2.2.21-r0
- >= 2.2.0, < 2.2.21, >= 2.3.0, < 2.3.18, >= 2.4.0, < 2.4.13
- from 0, < 2.2.9-2+deb11u3
- from 0, < 2.2.9-2+deb11u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |