UBUNTU-CVE-2021-20309

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    UBUNTU-CVE-2021-20309

    Published: 11 May 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-20309
    Aliases:
    USN-5158-1
    USN-5736-1
    USN-5736-2

    Summary:

    Details: A flaw was found in ImageMagick in versions before 7.0.11 and before 6.9.12, where a division by zero in WaveImage() of MagickCore/visual-effects.c may trigger undefined behavior via a crafted image file submitted to an application using ImageMagick. The highest threat from this vulnerability is to system availability.

    References: https://ubuntu.com/security/CVE-2021-20309, https://ubuntu.com/security/notices/USN-5158-1, https://ubuntu.com/security/notices/USN-5736-1, https://ubuntu.com/security/notices/USN-5736-2, https://ubuntu.com/security/notices/USN-6200-1, https://www.cve.org/CVERecord?id=CVE-2021-20309

    Affected packages

    Package

    Name: imagemagick

    Purl: pkg:deb/ubuntu/imagemagick@8:6.7.7.10-6ubuntu3.13+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -8:6.7.7.10-6ubuntu3.13+esm1

    Affected versions

    8:6.7.7.10-5ubuntu3
    8:6.7.7.10-5ubuntu4
    8:6.7.7.10-6ubuntu1
    8:6.7.7.10-6ubuntu2
    8:6.7.7.10-6ubuntu3
    8:6.7.7.10-6ubuntu3.1
    8:6.7.7.10-6ubuntu3.2
    8:6.7.7.10-6ubuntu3.3
    8:6.7.7.10-6ubuntu3.4
    8:6.7.7.10-6ubuntu3.5
    8:6.7.7.10-6ubuntu3.6
    8:6.7.7.10-6ubuntu3.7
    8:6.7.7.10-6ubuntu3.8
    8:6.7.7.10-6ubuntu3.9
    8:6.7.7.10-6ubuntu3.11
    8:6.7.7.10-6ubuntu3.12
    8:6.7.7.10-6ubuntu3.13

    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-2021-20309 | CVE-DB