CVE-2021-41689 — NULL Pointer Dereference in Dcmtk
Severity
7.5HIGHNVD
EPSS
0.1%
top 70.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 28
Latest updateJul 8
Description
DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6