Vulnerability Information
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Vulnerability Title
Uncontrolled Resource Consumption in cmark-gfm
Vulnerability Description
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.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Vulnerability Title
cmark-gfm 资源管理错误漏洞
Vulnerability Description
cmark-gfm是CommonMark的 C 参考实现的扩展版本，是带有规范的 Markdown 语法的合理化版本。 cmark-gfm 0.29.0.gfm.6 之前版本存在资源管理错误漏洞，该漏洞源于自动链接扩展中的多项式时间复杂度问题，可能导致无限资源耗尽和后续的拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A