CVE-2023-28626: Comrak vulnerable to quadratic runtime issues when parsing Markdown (GHSL-2023-047)
A range of quadratic parsing issues from cmark/cmark-gfm are also present in Comrak. These can be used to craft denial-of-service attacks on services that use Comrak to parse Markdown.
References
- github.com/advisories/GHSA-8hqf-xjwp-p67v
- github.com/commonmark/cmark/issues/218
- github.com/commonmark/cmark/issues/255
- github.com/commonmark/cmark/issues/284
- github.com/commonmark/cmark/issues/299
- github.com/commonmark/cmark/issues/373
- github.com/commonmark/cmark/issues/388
- github.com/commonmark/cmark/issues/389
- github.com/commonmark/cmark/pull/232
- github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py
- github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py
- github.com/kivikakk/comrak
- github.com/kivikakk/comrak/commit/ce795b7f471b01589f842dc09af38b025701178d
- github.com/kivikakk/comrak/releases/tag/0.17.0
- github.com/kivikakk/comrak/security/advisories/GHSA-8hqf-xjwp-p67v
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OUYME2VA555X6567H7ORIJQFN4BVGT6N
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTWZWCT7KCX2KTXTLPUYZ3EHOONG4X46
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VQ3UBC7LE4VPCMZBTADIBL353CH7CPVV
- nvd.nist.gov/vuln/detail/CVE-2023-28626
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