CVE-2020-12267

NameCVE-2020-12267
DescriptionsetMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qtbase-opensource-src (PTS)stretch5.7.1+dfsg-3+deb9u2fixed
stretch (security)5.7.1+dfsg-3+deb9u3fixed
buster5.11.3+dfsg1-1+deb10u4fixed
buster (security)5.11.3+dfsg1-1+deb10u3fixed
bullseye5.15.2+dfsg-9fixed
bookworm, sid5.15.4+dfsg-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qtbase-opensource-srcsource(unstable)(not affected)

Notes

- qtbase-opensource-src <not-affected> (Vulnerable code not present)
https://github.com/qt/qtbase/commit/7447e2b337f12b4d04935d0f30fc673e4327d5a0
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20450
The 5.14 in experimental contains the code, but is already fixed

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