|Description||The table extension in GitHub Flavored Markdown before version 0.29.0.gfm.1 takes O(n * n) time to parse certain inputs. An attacker could craft a markdown table which would take an unreasonably long time to process, causing a denial of service. This issue does not affect the upstream cmark project. The issue has been fixed in version 0.29.0.gfm.1.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
|Debian Bugs||965980, 965981, 965982, 965983, 965984|
Vulnerable and fixed packages
The table below lists information on source packages.
The information below is based on the following data on fixed versions.
[buster] - cmark-gfm <no-dsa> (Minor issue)
[buster] - python-cmarkgfm <no-dsa> (Minor issue)
[buster] - ruby-commonmarker <no-dsa> (Minor issue)
[buster] - haskell-cmark-gfm <no-dsa> (Minor issue)
[buster] - r-cran-commonmark <no-dsa> (Minor issue)
haskell-cmark-gfm switched to src:cmark-gfm in 0.2.1+ds1-1