fkie_cve-2022-39209
Vulnerability from fkie_nvd
Published
2022-09-15 18:15
Modified
2024-11-21 07:17
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security-advisories@github.comhttps://en.wikipedia.org/wiki/Time_complexityThird Party Advisory
security-advisories@github.comhttps://github.com/github/cmark-gfm/commit/9d57d8a23142b316282bdfc954cb0ecda40a8655Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/github/cmark-gfm/security/advisories/GHSA-cgh3-p57x-9q7qThird Party Advisory
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIUCZN3PEKUCT2JQYQTYOVIJG2KSD6G7/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMGP65NANDVKPDMXMKYO2ZV2H2HZJY4P/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEAAAI4OULDYQ2TA3HOXH54PC3DCBFZS/
af854a3a-2127-422b-91ae-364da2661108https://en.wikipedia.org/wiki/Time_complexityThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/github/cmark-gfm/commit/9d57d8a23142b316282bdfc954cb0ecda40a8655Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/github/cmark-gfm/security/advisories/GHSA-cgh3-p57x-9q7qThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIUCZN3PEKUCT2JQYQTYOVIJG2KSD6G7/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMGP65NANDVKPDMXMKYO2ZV2H2HZJY4P/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEAAAI4OULDYQ2TA3HOXH54PC3DCBFZS/
Impacted products
Vendor Product Version
github cmark-gfm *
fedoraproject fedora 35
fedoraproject fedora 36
fedoraproject fedora 37


To clipboard 

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         value: "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.",
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         value: "cmark-gfm es la bifurcación de GitHub de cmark, una biblioteca de análisis y renderización de CommonMark y un programa en C. En versiones anteriores a 0.29.0.gfm.6, un problema de complejidad de tiempo polinómico en la extensión de autolink de cmark-gfm puede conllevar a un agotamiento de recursos sin límites y la consiguiente denegación de servicio. Los usuarios pueden verificar el parche al ejecutar \"python3 -c \"print(\"![l \"* 100000 + \"\\n\")' | ./cmark-gfm -e autolink\", que agotará los recursos en cmark-gfm sin parchear, pero será mostrado correctamente en cmark-gfm parcheado. Esta vulnerabilidad ha sido parcheada en versión 0.29.0.gfm.6. Es recomendado a usuarios actualizar. Los usuarios que no puedan actualizares deberán deshabilitar el uso de la extensión autolink",
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   id: "CVE-2022-39209",
   lastModified: "2024-11-21T07:17:47.487",
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