UBUNTU-CVE-2020-29385

    Dashboard / Vulnerabilities / UBUNTU-CVE-2020-29385

    UBUNTU-CVE-2020-29385

    Published: 8 Dec 2020Last Modified: 22 Apr 2026
    Upstream:
    CVE-2020-29385
    Aliases:
    USN-4663-1

    Summary:

    Details: GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.

    References: https://ubuntu.com/security/CVE-2020-29385, https://mail.gnome.org/archives/distributor-list/2020-December/msg00000.html, https://ubuntu.com/security/notices/USN-4663-1, https://www.cve.org/CVERecord?id=CVE-2020-29385

    Affected packages

    Package

    Name: gdk-pixbuf

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-3ubuntu0.1?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.40.0+dfsg-3ubuntu0.1

    Affected versions

    2.40.0+dfsg-1build1
    2.40.0+dfsg-1ubuntu1
    2.40.0+dfsg-2
    2.40.0+dfsg-3

    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-2020-29385 | CVE-DB