CVE-2012-2942

Severity: medium (CVSS 5.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-05-27 · updated 2026-06-16
Weakness: CWE-119

Description

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.

Affected products

HAProxy: through 1.4.20

References

http://haproxy.1wt.eu/#news
http://haproxy.1wt.eu/download/1.4/src/CHANGELOG
http://haproxy.1wt.eu/git?p=haproxy-1.4.git%3Ba=commit%3Bh=30297cb17147a8d339eb160226bcc08c91d9530b
http://secunia.com/advisories/49261
http://security.gentoo.org/glsa/glsa-201301-02.xml
http://www.debian.org/security/2013/dsa-2711
http://www.openwall.com/lists/oss-security/2012/05/23/12
http://www.openwall.com/lists/oss-security/2012/05/23/15
http://www.openwall.com/lists/oss-security/2012/05/28/1
http://www.securityfocus.com/bid/53647
http://www.ubuntu.com/usn/USN-1800-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/75777

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