UBUNTU-CVE-2019-6977

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    UBUNTU-CVE-2019-6977

    Published: 26 Jan 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-6977
    Aliases:
    USN-3900-1

    Summary:

    Details: gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.

    References: https://ubuntu.com/security/CVE-2019-6977, http://php.net/ChangeLog-5.php, http://php.net/ChangeLog-7.php, https://ubuntu.com/security/notices/USN-3900-1, https://www.cve.org/CVERecord?id=CVE-2019-6977

    Affected packages

    Package

    Name: libgd2

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.1.0-3ubuntu0.11

    Affected versions

    2.1.0-2
    2.1.0-3
    2.1.0-3ubuntu0.1
    2.1.0-3ubuntu0.2
    2.1.0-3ubuntu0.3
    2.1.0-3ubuntu0.5
    2.1.0-3ubuntu0.6
    2.1.0-3ubuntu0.7
    2.1.0-3ubuntu0.8
    2.1.0-3ubuntu0.10

    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