CVE Feed

    Dashboard / CVE / CVE-2012-2942

    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.

    Published:May 27, 2012
    Last Modified:Apr 11, 2025
    EPS:May 27, 2012
    EPSS Score:0.00198
    CVSS Score:5.1

    Affected Products

    Vendor
    Haproxy
    Product
    Haproxy

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-26080 (CVSS 3.7) — HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishand…
    CVE-2026-26081 (CVSS 4.8) — HAProxy Community Edition 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy …
    CVE-2026-55204 (CVSS 8.7) — HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dh…
    CVE-2026-33555 (CVSS 4) — An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body lengt…
    CVE-2025-59303 (CVSS 6.4) — HAProxy Kubernetes Ingress Controller before 3.1.13, when the config-snippets feature flag is used, accepts co…
    CVE-2025-11230 (CVSS 7.5) — Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via …
    CVE-2025-32464 (CVSS 6.8) — HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sample_conv_regsub heap-based buffer over…
    CVE-2024-53008 (CVSS 5.3) — Inconsistent interpretation of HTTP requests ('HTTP Request/Response Smuggling') issue exists in HAProxy. If t…
    CVE-2024-49214 (CVSS 5.3) — QUIC in HAProxy 3.1.x before 3.1-dev7, 3.0.x before 3.0.5, and 2.9.x before 2.9.11 allows opening a 0-RTT sess…
    CVE-2024-45506 (CVSS 7.5) — HAProxy 2.9.x before 2.9.10, 3.0.x before 3.0.4, and 3.1.x through 3.1-dev6 allows a remote denial of service …

    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
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High