GHSA-4qw4-jpp4-8gvp

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    GHSA-4qw4-jpp4-8gvp

    Published: 21 Sept 2022Last Modified: 2 Dec 2024

    Summary: Unbounded resource exhaustion in cmark-gfm autolink extension may lead to denial of service

    Details: ### Impact CommonMarker uses `cmark-gfm` for rendering [Github Flavored Markdown](https://github.github.com/gfm/). A polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. ### Patches This vulnerability has been patched in the following CommonMarker release: - v0.23.6 ### Workarounds Disable use of the autolink extension. ### References https://github.com/gjtorikian/commonmarker/pull/190 https://github.com/github/cmark-gfm/security/advisories/GHSA-cgh3-p57x-9q7q https://en.wikipedia.org/wiki/Time_complexity ### For more information If you have any questions or comments about this advisory: * Open an issue in [github/cmark-gfm](https://github.com/github/cmark-gfm) ### Acknowledgements We would like to thank [Legit Security](https://www.legitsecurity.com) for reporting this vulnerability.

    References: https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-4qw4-jpp4-8gvp, https://github.com/gjtorikian/commonmarker/pull/190, https://github.com/gjtorikian/commonmarker, https://github.com/gjtorikian/commonmarker/releases/tag/v0.23.6

    Affected packages

    Package

    Name: commonmarker

    Purl: pkg:gem/commonmarker

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.23.6

    Affected versions

    0.0.1

    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
    GHSA-4qw4-jpp4-8gvp | CVE-DB