CVE-2012-2942
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21,...
CVE-2012-2942 is a medium vulnerability (CVSS 5.1) in Haproxy, published May 27, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.35%, the 92nd percentile. Fixed in haproxy 1.4.23-1.
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
Exploit likelihood
What each source reports
NVD Score used
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
- Record
CVE-2012-2942- CVSS 2.0
- 5.1 Medium
AV:N/AC:H/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
- Record
CVE-2012-2942- Updated
- 2026-11-02
EUVDEUVD-2012-2921 No score
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
- Record
EUVD-2012-2921- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m6hh-qxwf-f2wj No score
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21,...
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
- Record
GHSA-m6hh-qxwf-f2wj- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV No score
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
- Record
CVE-2012-2942- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-2942 No score
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
- Record
DEBIAN-CVE-2012-2942- Updated
- 2026-11-02
Affected products
Affected packages
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
openwall.com/lists/oss-security/2012/05/28/1
security.gentoo.org/glsa/glsa-201301-02.xml
exchange.xforce.ibmcloud.com/vulnerabilities/75777
securityfocus.com/bid/53647
haproxy.1wt.eu
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debian.org/security/2013/dsa-2711
secunia.com/advisories/49261
ubuntu.com/usn/USN-1800-1
nvd.nist.gov/vuln/detail/CVE-2012-2942
github.com/advisories/GHSA-m6hh-qxwf-f2wj
security-tracker.debian.org/tracker/CVE-2012-2942