| Name | CVE-2020-23884 |
| Description | A buffer overflow in Nomacs v3.15.0 allows attackers to cause a denial of service (DoS) via a crafted MNG file. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1014124 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qt6-base (PTS) | bookworm | 6.4.2+dfsg-10 | fixed |
| sid, trixie | 6.7.2+dfsg-4 | fixed |
| qtimageformats-opensource-src (PTS) | jessie | 5.3.2-2 | vulnerable |
| stretch | 5.7.1~20161021-2 | vulnerable |
| buster | 5.11.3-2 | vulnerable |
| bullseye | 5.15.2-2 | vulnerable |
| bookworm | 5.15.8-2 | vulnerable |
| sid, trixie | 5.15.15-3 | fixed |
The information below is based on the following data on fixed versions.
Notes
- qt6-base <not-affected> (Fixed before initial upload to the archive)
[bookworm] - qtimageformats-opensource-src <no-dsa> (Minor issue)
[bullseye] - qtimageformats-opensource-src <postponed> (Minor issue, DoS)
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)