Memory Management Issue in DCMTK by Offis
CVE-2021-41688

7.5HIGH

Key Information:

Vendor

Offis

Status
Dcmtk
Vendor
CVE Published:
28 June 2022

What is CVE-2021-41688?

DCMTK versions up to 3.6.6 exhibit improper memory handling, where an object can be freed while its address is still referenced by other parts of the application. This flaw can be exploited by sending specifically crafted requests to the dcmqrdb program, potentially resulting in a double free scenario. An attacker could leverage this weakness to cause denial of service, interrupting the functionality of the service dependent on DCMTK.

References

https://github.com/DCMTK/dcmtk
https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412...
https://lists.debian.org/debian-lts-announce/2024/06/msg0...
mailing-list

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.