CVE-2022-32266 Race condition in n/a
Attackers with DMA access can exploit a race condition in the SMI handler to corrupt memory and potentially execute code or escalate privileges.
- 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-2022-32266?
CVE-2022-32266 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 a software SMI handler used by the driver PcdSmmDxe could lead to a TOCTOU attack on the SMI handler and lead to corruption of other ACPI fields and adjacent memory fields. DMA attacks on the parameter buffer used by a software SMI handler used by the driver PcdSmmDxe could lead to a TOCTOU attack on the SMI handler and lead to corruption of other ACPI fields and adjacent memory fields. The attack would require detailed knowledge of the PCD database contents on the current platform. This issue was discovered by Insyde engineering during a security review. This issue is fixed in Kernel 5.3: 05.36.23, Kernel 5.4: 05.44.23, Kernel 5.5: 05.52.23. Kernel 5.2 is unaffected. CWE-787 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the parameter buffer that is used by a software SMI handler (used by the PcdSmmDxe driver) could lead to a TOCTOU race-condition attack on the SMI handler, and lead to corruption of other ACPI fields and adjacent memory fields. The attack would require detailed knowledge of the PCD database contents on the current platform.
Weakness: CWE-787
Which versions are affected by CVE-2022-32266?
It affects 1 product.
Products include Insyde Kernel.
How do I fix CVE-2022-32266?
No fix has been published for CVE-2022-32266 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-32266 being exploited?
There is no known exploitation of CVE-2022-32266 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-j8q4-3cww-3fwm.