CVE-2021-42976 Memory corruption in n/a
Local attackers can execute arbitrary kernel-mode code or crash the system via a buffer overflow in the IOCTL handler.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42976?
CVE-2021-42976 is a high-severity memory corruption vulnerability in n/a, published on 7 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NoMachine Enterprise Desktop is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.
Weakness: CWE-120
Which versions are affected by CVE-2021-42976?
It affects 1 product.
Products include Nomachine Enterprise Desktop.
How do I fix CVE-2021-42976?
No fix has been published for CVE-2021-42976 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-42976 being exploited?
There is no known exploitation of CVE-2021-42976 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-3724-4mmc-j59x.