CVE-2021-42973 Integer overflow in n/a
Local attackers can execute arbitrary kernel-mode code or crash the system via a crafted I/O Request Packet in NoMachine Server.
- 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-2021-42973?
CVE-2021-42973 is a high-severity 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 Server is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Server 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-190
Which versions are affected by CVE-2021-42973?
It affects 1 product.
Products include Nomachine Server.
How do I fix CVE-2021-42973?
No fix has been published for CVE-2021-42973 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42973 being exploited?
There is no known exploitation of CVE-2021-42973 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-mrjh-hc9f-vfff.