UBUNTU-CVE-2021-42203

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    UBUNTU-CVE-2021-42203

    Published: 2 Jun 2022Last Modified: 24 Oct 2025
    Upstream:
    CVE-2021-42203

    Summary:

    Details: An issue was discovered in swftools through 20201222. A heap-use-after-free exists in the function swf_FontExtract_DefineTextCallback() located in swftext.c. It allows an attacker to cause code execution.

    References: https://ubuntu.com/security/CVE-2021-42203, https://github.com/matthiaskramm/swftools/issues/176, https://www.cve.org/CVERecord?id=CVE-2021-42203

    Affected packages

    Package

    Name: swftools

    Purl: pkg:deb/ubuntu/[email protected]+git20130725-4.1~build0.16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.9.2+git20130725-2
    0.9.2+git20130725-2ubuntu1
    0.9.2+git20130725-4
    0.9.2+git20130725-4.1~build0.16.04.1

    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-2021-42203 | CVE-DB