CVE-2021-41689

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/DCMTK/dcmtk product third party advisory
https://github.com/DCMTK/dcmtk/commit/5c14bf53fb42ceca12bbcc0016e8704b1580920d third party advisory patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00022.html mailing list

Frequently Asked Questions

What is the severity of CVE-2021-41689?
CVE-2021-41689 has been scored as a high severity vulnerability.
How to fix CVE-2021-41689?
To fix CVE-2021-41689, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41689 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-41689 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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