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Vulnérabilités / CVE-2021-28834

critique

CVE-2021-28834

rubygem-kramdown: allows arbitrary classes to be instantiated

Publiée Modifiée
Dans la Trivy database depuis au moins le 24 oct. 2026, 07:11 UTCLa date d'entrée avant ce build n'est pas enregistrée.

Sévérité par source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Le label propre à Trivy est CRITICAL. Critique selon NVD, Ruby Advisory DB. Plus basse selon GHSA (élevée), Red Hat (moyenne), Ubuntu (moyenne).

Description

Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.

Paquets affectés et versions corrigées

SourcePaquetCorrigé en
rubygems::Ruby Advisory Databasekramdown>= 2.3.1
debian 10ruby-kramdown1.17.0-1+deb10u2
debian 11ruby-kramdown2.3.0-5
debian 12ruby-kramdown2.3.0-5
debian 13ruby-kramdown2.3.0-5
debian 14ruby-kramdown2.3.0-5
echoruby-kramdown2.3.0-5
rubygems::GitHub Security Advisory RubyGemskramdown2.3.1
ubuntu 20.04ruby-kramdown1.17.0-4ubuntu0.2
ubuntu 20.04-ESMruby-kramdown1.17.0-4ubuntu0.2

Références

Les 18 références

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.