Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2021-28834

Published: Mar 19, 2021 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
9.8 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-28834
CWEhttps://cwe.mitre.org/data/definitions/.html

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

Affected Software

Name Vendor Start Version End Version
Kramdown Kramdown_project * 2.3.1 (excluding)
Kramdown Ubuntu trusty *
Ruby-kramdown Ubuntu bionic *
Ruby-kramdown Ubuntu focal *
Ruby-kramdown Ubuntu groovy *
Ruby-kramdown Ubuntu hirsute *
Ruby-kramdown Ubuntu impish *
Ruby-kramdown Ubuntu kinetic *
Ruby-kramdown Ubuntu trusty *
Ruby-kramdown Ubuntu upstream *
Ruby-kramdown Ubuntu xenial *
Ruby-kramdown-rfc2629 Ubuntu bionic *
Ruby-kramdown-rfc2629 Ubuntu groovy *
Ruby-kramdown-rfc2629 Ubuntu hirsute *
Ruby-kramdown-rfc2629 Ubuntu impish *
Ruby-kramdown-rfc2629 Ubuntu kinetic *
Ruby-kramdown-rfc2629 Ubuntu trusty *
Ruby-kramdown-rfc2629 Ubuntu xenial *

References

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