Vulnerability · Published Jun 28, 2022 · Assigned by mitre
CVE-2021-41688
High 7.5
In plain English
A high-severity security flaw in the dcmtk package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.8%top 21.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | dcmtk | 3.6.7-1 | DEBIAN-CVE-2021-41688 |
| Debian:13 | dcmtk | 3.6.7-1 | DEBIAN-CVE-2021-41688 |
| Debian:14 | dcmtk | 3.6.7-1 | DEBIAN-CVE-2021-41688 |