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 |