UBUNTU-CVE-2023-40225

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    UBUNTU-CVE-2023-40225

    Published: 10 Aug 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-40225

    Summary:

    Details: HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpret the payload as an extra request.

    References: https://ubuntu.com/security/CVE-2023-40225, https://www.haproxy.org/download/2.6/src/CHANGELOG, https://www.haproxy.org/download/2.7/src/CHANGELOG, https://www.haproxy.org/download/2.8/src/CHANGELOG, https://github.com/advisories/GHSA-xgq7-jp95-v2qv, https://ubuntu.com/security/notices/USN-6294-1, https://ubuntu.com/security/notices/USN-6294-2, https://www.cve.org/CVERecord?id=CVE-2023-40225

    Affected packages

    Package

    Name: haproxy

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.31-0ubuntu0.2

    Affected versions

    2.0.5-1
    2.0.8-1
    2.0.9-1
    2.0.10-1
    2.0.10-1ubuntu1
    2.0.11-1ubuntu1
    2.0.12-1ubuntu2
    2.0.13-1ubuntu2
    2.0.13-2
    2.0.13-2ubuntu0.1
    2.0.13-2ubuntu0.2
    2.0.13-2ubuntu0.3
    2.0.13-2ubuntu0.5
    2.0.29-0ubuntu1
    2.0.29-0ubuntu1.1
    2.0.29-0ubuntu1.3
    2.0.31-0ubuntu0.1

    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
    UBUNTU-CVE-2023-40225 | CVE-DB