| Name | CVE-2021-3404 |
| Description | In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted 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 | 982596 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libytnef (PTS) | jessie, jessie (lts) | 1.5-6+deb8u1 | vulnerable |
| stretch | 1.9.2-2 | vulnerable |
| buster | 1.9.3-1 | vulnerable |
| bullseye | 1.9.3-3 | fixed |
| bookworm | 2.0-1 | fixed |
| sid, trixie | 2.1.2-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libytnef | source | jessie | (unfixed) | end-of-life | | |
| libytnef | source | (unstable) | 1.9.3-3 | | | 982596 |
Notes
[buster] - libytnef <no-dsa> (Minor issue)
[stretch] - libytnef <no-dsa> (Minor issue)
https://github.com/Yeraze/ytnef/issues/86
https://github.com/Yeraze/ytnef/pull/88
https://github.com/Yeraze/ytnef/commit/f9ff4a203b8c155d51a208cadadb62f224fba715