| Name | CVE-2021-41690 |
| Description | DCMTK through 3.6.6 does not handle memory free properly. The malloced memory for storing all file information are recorded in a global variable LST and are not freed properly. Sending specific requests to the dcmqrdb program can incur a memory leak. 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)