{"id":"GHSA-8hqf-xjwp-p67v","summary":"Comrak vulnerable to quadratic runtime issues when parsing Markdown (GHSL-2023-047)","details":"### Impact\nA 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.\n\n### Patches\n0.17.0 contains fixes to known quadratic parsing issues.\n\n### Workarounds\n\nn/a\n\n### References\n\n* https://github.com/commonmark/cmark/issues/255\n* https://github.com/commonmark/cmark/issues/389\n* https://github.com/commonmark/cmark/issues/373\n* https://github.com/commonmark/cmark/issues/299\n* https://github.com/commonmark/cmark/issues/388\n* https://github.com/commonmark/cmark/issues/284\n* https://github.com/commonmark/cmark/issues/218\n* https://github.com/commonmark/cmark/pull/232\n* https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L63-L65\n* https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L87-L89","aliases":["CVE-2023-28626"],"modified":"2023-11-01T05:01:43.110220Z","published":"2023-03-28T14:40:29Z","database_specific":{"github_reviewed_at":"2023-03-28T14:40:29Z","nvd_published_at":"2023-03-28T21:15:00Z","cwe_ids":["CWE-400"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/kivikakk/comrak/security/advisories/GHSA-8hqf-xjwp-p67v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28626"},{"type":"WEB","url":"https://github.com/commonmark/cmark/issues/389"},{"type":"WEB","url":"https://github.com/commonmark/cmark/issues/388"},{"type":"WEB","url":"https://github.com/commonmark/cmark/issues/373"},{"type":"WEB","url":"https://github.com/commonmark/cmark/issues/299"},{"type":"WEB","url":"https://github.com/commonmark/cmark/issues/284"},{"type":"WEB","url":"https://github.com/commonmark/cmark/issues/255"},{"type":"WEB","url":"https://github.com/commonmark/cmark/issues/218"},{"type":"WEB","url":"https://github.com/commonmark/cmark/pull/232"},{"type":"WEB","url":"https://github.com/kivikakk/comrak/commit/ce795b7f471b01589f842dc09af38b025701178d"},{"type":"WEB","url":"https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L63-L65"},{"type":"WEB","url":"https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L87-L89"},{"type":"PACKAGE","url":"https://github.com/kivikakk/comrak"},{"type":"WEB","url":"https://github.com/kivikakk/comrak/releases/tag/0.17.0"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OUYME2VA555X6567H7ORIJQFN4BVGT6N"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTWZWCT7KCX2KTXTLPUYZ3EHOONG4X46"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VQ3UBC7LE4VPCMZBTADIBL353CH7CPVV"}],"affected":[{"package":{"name":"comrak","ecosystem":"crates.io","purl":"pkg:cargo/comrak"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.17.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-8hqf-xjwp-p67v/GHSA-8hqf-xjwp-p67v.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}