Vulnerability in Offis Dcmtk
CVE-2021-41687
DCMTK through 3.6.6 does not handle memory free properly. The program malloc a heap memory for parsing data, but does not free it when error in parsing. Sending specific requests to the dcmqrdb program incur the memory leak. An attacker can use it to launch a DoS attack.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/DCMTK/dcmtk (Product, Third Party Advisory)
- github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2024/06/msg00022.html (mailing-list)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2021-41687?
- CVE-2021-41687 is a high-severity vulnerability in Offis Dcmtk, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2022-06-28.
- How severe is CVE-2021-41687?
- High severity. CVSS v3 base score is 7.5 out of 10.