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.

References

https://github.com/DCMTK/dcmtk

https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb

https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html ([debian-lts-announce] 20240628 [SECURITY] [DLA 3847-1] dcmtk security update) mailing-list

cve.org CVE-2021-41690

nvd.nist.gov CVE-2021-41690

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