Double Free in Offis Dcmtk
CVE-2021-41688
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.
Vulnerability class: Double Free
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-2021-41688?
- CVE-2021-41688 is a high-severity vulnerability in Offis Dcmtk, classified under Double Free. CVSS score: 7.5/10. Published 2022-06-28.
- How severe is CVE-2021-41688?
- High severity. CVSS v3 base score is 7.5 out of 10.