Vulnerability in Haproxy
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.166 (96.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.166 · newest: 0.166 · change: 0.000
Affected products
- Haproxy
- Debian Linux — versions 11.0
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Red Hat Openshift Container Platform — versions 4.0
- Red Hat Software Collections
- Haproxy — versions 2.5.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/security/cve/cve-2022-0711 (Third Party Advisory)
- www.mail-archive.com/haproxy@formilux.org/msg41833.html
- github.com/haproxy/haproxy/commit/bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8 (Patch, Third Party Advisory)
- www.debian.org/security/2022/dsa-5102 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-0711?
- CVE-2022-0711 is a high-severity vulnerability in Haproxy, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2022-03-02.
- How severe is CVE-2022-0711?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-0711 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.