cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running `python3 -c 'print("![l"* 100000 + "\n")' | ./cmark-gfm -e autolink`, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In     versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may     lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by     running `python3 -c 'print(![l* 100000 + \n)' | ./cmark-gfm -e autolink`, which will resource exhaust     on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in     0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink     extension. (CVE-2022-39209)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7319-1 advisory.

    It was discovered that cmark-gfm's autolink extension did not correctly handle parsing large inputs. An     attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04     LTS and Ubuntu 22.04 LTS. (CVE-2022-39209)

    It was discovered that cmark-gfm did not correctly handle parsing large inputs. An attacker could possibly     use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS     and Ubuntu 24.10. (CVE-2023-22483)

    It was discovered that cmark-gfm did not correctly handle parsing large inputs. An attacker could possibly     use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 24.10.
    (CVE-2023-22484)

    It was discovered that cmark-gfm did not correctly handle parsing large inputs. An attacker could possibly     use this issue to cause a denial of service. (CVE-2023-22486, CVE-2023-26485)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2022-dc6d6d9d6c advisory.

    updates the C library to 0.29.0.gfm.6 which fixes CVE-2022-39209

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 39 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2023-d1e9e62a92 advisory.

    Automatic update for ghostwriter-23.03.90-2.fc39.

    ##### **Changelog**

    ```
    * Sat Apr  1 2023 Vitaly Zaitsev <vitaly@easycoding.org> - 23.03.90-2
    - Switched to Ninja.
    - Explicitly set Release configuration.
    - Sorted all BuildRequires by name for better readability.
    - Updated bundled libraries versions. Fixes rhbz#2128046.
    * Fri Mar 31 2023 Marc Deop i Argem <marcdeop@fedoraproject.org> - 23.03.90-1
    - 23.03.90

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 35 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2022-f1aed93db8 advisory.

    updates the C library to 0.29.0.gfm.6 which fixes CVE-2022-39209

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 36 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2022-6bcee2cc93 advisory.

    updates the C library to 0.29.0.gfm.6 which fixes CVE-2022-39209

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
224993	Linux Distros Unpatched Vulnerability : CVE-2022-39209	Nessus	Misc.	medium
218384	Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : cmark-gfm vulnerabilities (USN-7319-1)	Nessus	Ubuntu Local Security Checks	high
211193	Fedora 37 : ghc-cmark-gfm (2022-dc6d6d9d6c)	Nessus	Fedora Local Security Checks	medium
185204	Fedora 39 : ghostwriter (2023-d1e9e62a92)	Nessus	Fedora Local Security Checks	medium
169126	Fedora 35 : ghc-cmark-gfm (2022-f1aed93db8)	Nessus	Fedora Local Security Checks	medium
169093	Fedora 36 : ghc-cmark-gfm (2022-6bcee2cc93)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2022-39209

medium

Tenable Plugins

medium

high

medium

medium

medium

medium