| Name | CVE-2021-41688 |
| Description | DCMTK through 3.6.6 does not handle memory free properly. The object in the program is free but its address is still used in other locations. Sending specific requests to the dcmqrdb program will incur a double free. 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/a9697dfeb672b0b9412c00c7d36d801e27ec85cb (DCMTK-3.6.7)