CVE-2022-30774 Race condition in n/a
A TOCTOU race condition in the PnpSmm driver allows DMA attacks to modify parameters, potentially leading to privilege escalation or code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-30774?
CVE-2022-30774 is a medium-severity vulnerability in n/a, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) . This issue was discovered by Insyde engineering during a security review. This iss was fixed in Kernel 5.2: 05.27.29, Kernel 5.3: 05.36.25, Kernel 5.4: 05.44.25, Kernel 5.5: 05.52.25. CWE-367 https://www.insyde.com/security-pledge/SA-2022043
Weakness: CWE-367
Which versions are affected by CVE-2022-30774?
It affects 1 product.
Products include Insyde Kernel.
How do I fix CVE-2022-30774?
No fix has been published for CVE-2022-30774 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-30774 being exploited?
There is no known exploitation of CVE-2022-30774 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-5529-988r-7c93.