| Name | CVE-2021-41689 |
| Description | DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3847-1, ELA-1118-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| dcmtk (PTS) | jessie, jessie (lts) | 3.6.0-15+deb8u1 | vulnerable |
| stretch (lts), stretch | 3.6.1~20160216-4+deb10u1 | fixed |
| buster (security), buster, buster (lts) | 3.6.4-2.1+deb10u1 | fixed |
| bullseye | 3.6.5-1 | vulnerable |
| bookworm | 3.6.7-9~deb12u1 | fixed |
| sid, trixie | 3.6.8-6 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| dcmtk | source | jessie | (unfixed) | end-of-life | | |
| dcmtk | source | stretch | 3.6.1~20160216-4+deb10u1 | | ELA-1118-1 | |
| dcmtk | source | buster | 3.6.4-2.1+deb10u1 | | DLA-3847-1 | |
| dcmtk | source | (unstable) | 3.6.7-1 | | | |
Notes
[bullseye] - dcmtk <no-dsa> (Minor issue)
https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d (DCMTK-3.6.7)