CVE-2023-28626
Comrak vulnerable to quadratic runtime issues when parsing Markdown (GHSL-2023-047)
Impact
### Impact 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. ### Patches 0.17.0 contains fixes to known quadratic parsing issues. ### Workarounds n/a ### References * https://github.com/commonmark/cmark/issues/255 * https://github.com/commonmark/cmark/issues/389 * https://github.com/commonmark/cmark/issues/373 * https://github.com/commonmark/cmark/issues/299 * https://github.com/commonmark/cmark/issues/388 * https://github.com/commonmark/cmark/issues/284 * https://github.com/commonmark/cmark/issues/218 * https://github.com/commonmark/cmark/pull/232 * https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L63-L65 * https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L87-L89
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | comrak | < 0.17.0 | 0.17.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Comrak Project | Comrak | before 0.17.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/kivikakk/comrak/commit/ce795b7f471b01589f842dc09af38b025701178d
- https://github.com/kivikakk/comrak/security/advisories/GHSA-8hqf-xjwp-p67v
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OUYME2VA555X6567H7ORIJQFN4BVGT6N/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTWZWCT7KCX2KTXTLPUYZ3EHOONG4X46/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VQ3UBC7LE4VPCMZBTADIBL353CH7CPVV/
- https://github.com/advisories/GHSA-8hqf-xjwp-p67v
- https://github.com/commonmark/cmark/issues/218
- https://github.com/commonmark/cmark/issues/255
- https://github.com/commonmark/cmark/issues/284
- https://github.com/commonmark/cmark/issues/299
- https://github.com/commonmark/cmark/issues/373
- https://github.com/commonmark/cmark/issues/388
- https://github.com/commonmark/cmark/issues/389
- https://github.com/commonmark/cmark/pull/232
- https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L63-L65
- https://github.com/github/cmark-gfm/blob/c32ef78bae851cb83b7ad52d0fbff880acdcd44a/test/pathological_tests.py#L87-L89
- https://github.com/kivikakk/comrak/releases/tag/0.17.0
- https://nvd.nist.gov/vuln/detail/CVE-2023-28626