UBUNTU-CVE-2021-21236

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    UBUNTU-CVE-2021-21236

    Published: 6 Jan 2021Last Modified: 17 Oct 2026
    Upstream:
    CVE-2021-21236

    Summary:

    Details: CairoSVG is a Python (pypi) package. CairoSVG is an SVG converter based on Cairo. In CairoSVG before version 2.5.1, there is a regular expression denial of service (REDoS) vulnerability. When processing SVG files, the python package CairoSVG uses two regular expressions which are vulnerable to Regular Expression Denial of Service (REDoS). If an attacker provides a malicious SVG, it can make cairosvg get stuck processing the file for a very long time. This is fixed in version 2.5.1. See Referenced GitHub advisory for more information.

    References: https://ubuntu.com/security/CVE-2021-21236, https://github.com/Kozea/CairoSVG/security/advisories/GHSA-hq37-853p-g5cf, https://github.com/Kozea/CairoSVG/commit/063185b60588a41d4df661ad70f9f7b699901abc, https://github.com/Kozea/CairoSVG/commit/cfc9175e590531d90384aa88845052de53d94bf3, https://github.com/Kozea/CairoSVG/releases/tag/2.5.1, https://pypi.org/project/CairoSVG/, https://www.cve.org/CVERecord?id=CVE-2021-21236

    Affected packages

    Package

    Name: cairosvg

    Purl: pkg:deb/ubuntu/cairosvg?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.0.16-1
    1.0.17-1
    1.0.19-1

    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-2021-21236 | CVE-DB