CVE-2021-41690
Published: 28 June 2022
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.
Priority
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)
|
|
Patches: upstream: https://github.com/DCMTK/dcmtk/commit/a9697dfeb672b0b9412c00c7d36d801e27ec85cb |
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 |