UBUNTU-CVE-2021-46829

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    UBUNTU-CVE-2021-46829

    Published: 24 Jul 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-46829
    Aliases:
    USN-5554-1

    Summary:

    Details: GNOME GdkPixbuf (aka GDK-PixBuf) before 2.42.8 allows a heap-based buffer overflow when compositing or clearing frames in GIF files, as demonstrated by io-gif-animation.c composite_frame. This overflow is controllable and could be abused for code execution, especially on 32-bit systems.

    References: https://ubuntu.com/security/CVE-2021-46829, https://www.openwall.com/lists/oss-security/2022/07/25/1, https://github.com/pedrib/PoC/blob/master/fuzzing/CVE-2021-46829/CVE-2021-46829.md, https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121, https://ubuntu.com/security/notices/USN-5554-1, https://www.cve.org/CVERecord?id=CVE-2021-46829

    Affected packages

    Package

    Name: gdk-pixbuf

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

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

    Affected versions

    2.40.0+dfsg-1build1
    2.40.0+dfsg-1ubuntu1
    2.40.0+dfsg-2
    2.40.0+dfsg-3
    2.40.0+dfsg-3ubuntu0.1
    2.40.0+dfsg-3ubuntu0.2

    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-2021-46829 | CVE-DB