UBUNTU-CVE-2018-20615

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    UBUNTU-CVE-2018-20615

    Published: 31 Dec 2018Last Modified: 4 Feb 2026
    Upstream:
    CVE-2018-20615
    Aliases:
    USN-3858-1

    Summary:

    Details: An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.

    References: https://ubuntu.com/security/CVE-2018-20615, https://ubuntu.com/security/notices/USN-3858-1, https://www.cve.org/CVERecord?id=CVE-2018-20615

    Affected packages

    Package

    Name: haproxy

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.8.8-1ubuntu0.3

    Affected versions

    1.7.9-1ubuntu1
    1.7.9-1ubuntu2

    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