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Debian: CVE-2022-39209: Multiple Affected Packages

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Debian: CVE-2022-39209: Multiple Affected Packages

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/15/2022
Created
07/31/2024
Added
07/30/2024
Modified
07/30/2024

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.

Solution(s)

  • debian-upgrade-cmark-gfm
  • debian-upgrade-ghostwriter
  • debian-upgrade-python-cmarkgfm
  • debian-upgrade-r-cran-commonmark
  • debian-upgrade-ruby-commonmarker

References

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