Vulnerability Details : CVE-2012-2942
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.
Vulnerability category: OverflowExecute codeDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2012-2942
Probability of exploitation activity in the next 30 days: 10.16%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 94 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2012-2942
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.1
|
MEDIUM | AV:N/AC:H/Au:N/C:P/I:P/A:P |
4.9
|
6.4
|
NIST |
CWE ids for CVE-2012-2942
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-2942
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http://haproxy.1wt.eu/download/1.4/src/CHANGELOG
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http://www.openwall.com/lists/oss-security/2012/05/23/12
oss-security - CVE request: haproxy trash buffer overflow flaw
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http://haproxy.1wt.eu/#news
HAProxy - The Reliable, High Performance TCP/HTTP Load Balancer
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http://www.openwall.com/lists/oss-security/2012/05/23/15
oss-security - Re: CVE request: haproxy trash buffer overflow flaw
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http://www.ubuntu.com/usn/USN-1800-1
USN-1800-1: HAProxy vulnerabilities | Ubuntu security notices
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http://security.gentoo.org/glsa/glsa-201301-02.xml
HAProxy: Arbitrary code execution (GLSA 201301-02) — Gentoo security
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https://exchange.xforce.ibmcloud.com/vulnerabilities/75777
HAProxy trash buffer overflow CVE-2012-2942 Vulnerability Report
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http://www.securityfocus.com/bid/53647
HAProxy Trash Buffer Overflow Vulnerability
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http://haproxy.1wt.eu/git?p=haproxy-1.4.git;a=commit;h=30297cb17147a8d339eb160226bcc08c91d9530b
Index of /gitVendor Advisory
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http://www.openwall.com/lists/oss-security/2012/05/28/1
oss-security - Duplicate CVE identifiers (CVE-2012-2391 and CVE-2012-2942) assigned to HAProxy issue
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http://www.debian.org/security/2013/dsa-2711
Debian -- Security Information -- DSA-2711-1 haproxy
Products affected by CVE-2012-2942
- cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*