CVE-2022-33907 Race condition in n/a
Attackers can corrupt SMRAM via a TOCTOU race condition in the IdeBusDxe driver, enabling privilege escalation or code execution in the firmware.
- 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-2022-33907?
CVE-2022-33907 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 transactions which are targeted at input buffers used for the software SMI handler used by the IdeBusDxe driver could cause SMRAM corruption through a TOCTOU attack... DMA transactions which are targeted at input buffers used for the software SMI handler used by the IdeBusDxe driver could cause SMRAM corruption through a TOCTOU attack. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in kernel 5.2: 05.27.25, kernel 5.3: 05.36.25, kernel 5.4: 05.44.25 https://www.insyde.com/security-pledge/SA-2022049
Weakness: CWE-367
Which versions are affected by CVE-2022-33907?
It affects 1 product.
Products include Insyde Kernel.
How do I fix CVE-2022-33907?
No fix has been published for CVE-2022-33907 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-33907 being exploited?
There is no known exploitation of CVE-2022-33907 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-fh27-97r5-49gq.