UBUNTU-CVE-2021-45909

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    UBUNTU-CVE-2021-45909

    Published: 28 Dec 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-45909
    Aliases:
    USN-5969-1

    Summary:

    Details: An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boundaries of a buffer.

    References: https://ubuntu.com/security/CVE-2021-45909, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002668, https://ubuntu.com/security/notices/USN-5969-1, https://www.cve.org/CVERecord?id=CVE-2021-45909

    Affected packages

    Package

    Name: gif2apng

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.7-3ubuntu0.1~esm1

    Affected versions

    1.7-3

    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-2021-45909 | CVE-DB