CVE-2021-41689 Null dereference in n/a
An attacker can cause a denial of service in the dcmqrdb program by sending specific requests that trigger a null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-41689?
CVE-2021-41689 is a high-severity vulnerability in n/a, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-476
Which versions are affected by CVE-2021-41689?
It affects 1 product.
Products include Offis Dcmtk.
How do I fix CVE-2021-41689?
Upgrade to a fixed version.
Is CVE-2021-41689 being exploited?
There is no known exploitation of CVE-2021-41689 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2021-41689, GHSA-558h-5pv9-xxg9, UBUNTU-CVE-2021-41689.