CVE-2021-41688

HIGH

Offis Dcmtk < 3.6.6 - Double Free

Title source: rule

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.

References (4)

[Product, Third Party Advisory] https://github.com/DCMTK/dcmtk

[Patch, Third Party Advisory] https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb

[Mailing List] https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html

[Mailing List] https://lists.debian.org/debian-lts-announce/2025/01/msg00032.html

Scores

CVSS v3 7.5

EPSS 0.0014

EPSS Percentile 33.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-415

Status published

Affected Products (1)

offis/dcmtk < 3.6.6

Timeline

Published Jun 28, 2022

Tracked Since Feb 18, 2026