CVE-2020-23884

NameCVE-2020-23884
DescriptionA buffer overflow in Nomacs v3.15.0 allows attackers to cause a denial of service (DoS) via a crafted MNG file.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1014124

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qt6-base (PTS)bookworm6.4.2+dfsg-10fixed
sid, trixie6.7.2+dfsg-4fixed
qtimageformats-opensource-src (PTS)jessie5.3.2-2vulnerable
stretch5.7.1~20161021-2vulnerable
buster5.11.3-2vulnerable
bullseye5.15.2-2vulnerable
bookworm5.15.8-2vulnerable
trixie5.15.13-2vulnerable
sid5.15.15-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qt6-basesource(unstable)(not affected)
qtimageformats-opensource-srcsourcejessie(unfixed)end-of-life
qtimageformats-opensource-srcsourcestretch(unfixed)end-of-life
qtimageformats-opensource-srcsourcebuster(unfixed)end-of-life
qtimageformats-opensource-srcsource(unstable)5.15.15-31014124

Notes

- qt6-base <not-affected> (Fixed before initial upload to the archive)
Originally reported/assigned to nomac, but actual issue is in Qt:
https://github.com/nomacs/nomacs/issues/516
https://codereview.qt-project.org/c/qt/qtbase/+/303313
https://github.com/qt/qtbase/commit/1a63409579ff0e9ce524c09701c1ef8bd2d99f25 (v6.0.0-alpha1)

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