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CVE-2021-41688

Published: 28 June 2022

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.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
dcmtk
Launchpad, Ubuntu, Debian
bionic
Released (3.6.2-3ubuntu0.1~esm1)
focal
Released (3.6.4-2.1ubuntu0.1~esm1)
impish Ignored
(reached end-of-life)
jammy
Released (3.6.6-5ubuntu0.1~esm1)
kinetic Not vulnerable
(3.6.7-5)
trusty Does not exist

upstream
Released (3.6.7-1)
xenial
Released (3.6.1~20150924-5ubuntu0.1~esm1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H