High severityNVD Advisory· Published Mar 19, 2021· Updated Aug 3, 2024
CVE-2021-28834
CVE-2021-28834
Description
Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
kramdownRubyGems | >= 1.16.0, < 2.3.1 | 2.3.1 |
Affected products
4- Kramdown/Kramdowndescription
- ghsa-coords3 versionspkg:gem/kramdownpkg:rpm/opensuse/ruby3.2-rubygem-kramdown&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/rubygem-kramdown&distro=openSUSE%20Tumbleweed
>= 1.16.0, < 2.3.1+ 2 more
- (no CPE)range: >= 1.16.0, < 2.3.1
- (no CPE)range: < 2.4.0-1.8
- (no CPE)range: < 2.4.0-1.1
Patches
Vulnerability mechanics
References
15- github.com/advisories/GHSA-52p9-v744-mwjjghsaADVISORY
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/mitrevendor-advisoryx_refsource_FEDORA
- nvd.nist.gov/vuln/detail/CVE-2021-28834ghsaADVISORY
- www.debian.org/security/2021/dsa-4890ghsavendor-advisoryx_refsource_DEBIANWEB
- about.gitlab.com/releases/2021/03/17/security-release-gitlab-13-9-4-released/ghsaWEB
- github.com/gettalong/kramdown/compare/REL_2_3_0...REL_2_3_1ghsax_refsource_MISCWEB
- github.com/gettalong/kramdown/pull/708ghsax_refsource_MISCWEB
- github.com/stanhu/kramdown/commit/d6a1cbcb2caa2f8a70927f176070d126b2422760ghsaWEB
- github.com/stanhu/kramdown/commit/ff0218aefcf00cd5a389e17e075d36cd46d011e2ghsaWEB
- gitlab.com/gitlab-org/gitlab/-/commit/179329b5c3c118924fb242dc449d06b4ed6ccb66ghsax_refsource_MISCWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGVghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6ghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPRghsaWEB
News mentions
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