GHSA-52p9-v744-mwjjHighCVSS 9.8
Remote code execution in Kramdown
🔗 CVE IDs covered (1)
📋 Description
Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
🎯 Affected products1
- rubygems/kramdown:>= 1.16.0, < 2.3.1
🔗 References (12)
- https://nvd.nist.gov/vuln/detail/CVE-2021-28834
- https://github.com/gettalong/kramdown/pull/708
- https://github.com/stanhu/kramdown/commit/d6a1cbcb2caa2f8a70927f176070d126b2422760
- https://github.com/stanhu/kramdown/commit/ff0218aefcf00cd5a389e17e075d36cd46d011e2
- https://about.gitlab.com/releases/2021/03/17/security-release-gitlab-13-9-4-released/#remote-code-execution-via-unsafe-user-controlled-markdown-rendering-options
- https://github.com/gettalong/kramdown/compare/REL_2_3_0...REL_2_3_1
- https://gitlab.com/gitlab-org/gitlab/-/commit/179329b5c3c118924fb242dc449d06b4ed6ccb66
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/
- https://www.debian.org/security/2021/dsa-4890
- https://github.com/advisories/GHSA-52p9-v744-mwjj