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    CVE-2013-1912

    Buffer overflow in HAProxy 1.4 through 1.4.22 and 1.5-dev through 1.5-dev17, when HTTP keep-alive is enabled, using HTTP keywords in TCP inspection rules, and running with rewrite rules that appends to requests, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted pipelined HTTP requests that prevent request realignment from occurring.

    Published:Apr 2, 2013
    Last Modified:Apr 11, 2025
    EPS:Apr 10, 2013
    EPSS Score:0.00143
    CVSS Score:5.1

    Affected Products

    Vendor
    Haproxy
    Product
    Haproxy
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openshift

    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://lists.fedoraproject.org/pipermail/package-announce/2013-April/103730.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103770.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103794.html
    http://rhn.redhat.com/errata/RHSA-2013-0729.html
    http://rhn.redhat.com/errata/RHSA-2013-0868.html
    http://secunia.com/advisories/52725
    http://www.debian.org/security/2013/dsa-2711
    http://www.openwall.com/lists/oss-security/2013/04/03/1
    http://www.securityfocus.com/bid/58820
    http://www.ubuntu.com/usn/USN-1800-1
    http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103730.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103770.html
    http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103794.html
    http://rhn.redhat.com/errata/RHSA-2013-0729.html
    http://rhn.redhat.com/errata/RHSA-2013-0868.html
    http://secunia.com/advisories/52725
    http://www.debian.org/security/2013/dsa-2711
    http://www.openwall.com/lists/oss-security/2013/04/03/1
    http://www.securityfocus.com/bid/58820
    http://www.ubuntu.com/usn/USN-1800-1

    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