dcmtk: DCMTK through 3.6.6 does not handle string copy properly
CVE-2021-41689 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2021-41689, released June 28, 2022. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dcmtk · Debian 12.15 (bookworm) | 3.6.7-1 | DEBIAN-CVE-2021-41689 | Jun 28, 2022 |
| dcmtk · Debian 13.5 (trixie) | 3.6.7-1 | DEBIAN-CVE-2021-41689 | Jun 28, 2022 |
| dcmtk · Debian 14 | 3.6.7-1 | DEBIAN-CVE-2021-41689 | Jun 28, 2022 |
| dcmtk · Ubuntu 18.04.6 LTS (bionic) | 3.6.2-3ubuntu0.1~esm1 | dcmtk 3.6.2-3ubuntu0.1~esm1 | Dec 2, 2022 |
| dcmtk · Ubuntu 20.04 LTS (focal) | 3.6.4-2.1ubuntu0.1~esm1 | dcmtk 3.6.4-2.1ubuntu0.1~esm1 | Dec 2, 2022 |
| dcmtk · Ubuntu 22.04.1 LTS (jammy) | 3.6.6-5ubuntu0.1~esm1 | dcmtk 3.6.6-5ubuntu0.1~esm1 | Dec 2, 2022 |
| libdcmtk12 · Ubuntu 18.04.6 LTS (bionic) | 3.6.2-3ubuntu0.1~esm1 | libdcmtk12 3.6.2-3ubuntu0.1~esm1 | Dec 2, 2022 |
| libdcmtk14 · Ubuntu 20.04 LTS (focal) | 3.6.4-2.1ubuntu0.1~esm1 | libdcmtk14 3.6.4-2.1ubuntu0.1~esm1 | Dec 2, 2022 |
| libdcmtk16 · Ubuntu 22.04.1 LTS (jammy) | 3.6.6-5ubuntu0.1~esm1 | libdcmtk16 3.6.6-5ubuntu0.1~esm1 | Dec 2, 2022 |
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