CVE-2023-24824: medium-severity vulnerability in github cmark-gfm
Quadratic complexity may lead to a denial of service in cmark-gfm
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.0%
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `>` or `-` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. Users unable to upgrade should validate that their input comes from trusted sources.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
github · cmark-gfmRelated CVEs — github cmark-gfm
In the same product, most dangerous first.
CVE-2022-24724HIGHInteger overflow in table parsing extension leads to heap memory corruptionEPSS 4.5%CVE-2022-39209HIGHUncontrolled Resource Consumption in cmark-gfmEPSS 2.3%CVE-2020-5238MEDIUMDenial of service in table parsing in cmark-gfmEPSS 1.6%CVE-2023-22486LOWcmark-gfm Quadratic complexity bug in handle_close_bracket may lead to a denial of serviceEPSS 1.1%CVE-2023-22483LOWcmark-gfm Quadratic complexity bugs may lead to a denial of serviceEPSS 1.1%CVE-2023-26485MEDIUMQuadratic complexity may lead to a denial of service in cmark-gfmEPSS 1.0%