CVE-2021-44856

NameCVE-2021-44856
DescriptionAn issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A title blocked by AbuseFilter can be created via Special:ChangeContentModel due to the mishandling of the EditFilterMergedContent hook return value.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3117-1, DSA-5246-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mediawiki (PTS)buster1:1.31.16-1+deb10u2vulnerable
buster (security)1:1.31.16-1+deb10u7fixed
bullseye (security), bullseye1:1.35.13-1~deb11u1fixed
bookworm, bookworm (security)1:1.39.5-1~deb12u1fixed
sid, trixie1:1.39.6-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mediawikisourcebuster1:1.31.16-1+deb10u3DLA-3117-1
mediawikisourcebullseye1:1.35.8-1~deb11u1DSA-5246-1
mediawikisource(unstable)1:1.35.5-1

Notes

[stretch] - mediawiki <postponed> (Minor issue)
https://phabricator.wikimedia.org/T271037
https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/

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