CVE-2022-30772 Memory corruption in n/a
Malware can exploit a flaw in the PnpSmm driver to overwrite SMRAM or OS kernel memory, enabling code execution and privilege escalation.
- 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-2022-30772?
CVE-2022-30772 is a high-severity memory corruption vulnerability in n/a, published on 15 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Manipulation of the input address in PnpSmm function 0x52 could be used by malware to overwrite SMRAM or OS kernel memory. Function 0x52 of the PnpSmm driver is passed the address and size of data to write into the SMBIOS table, but manipulation of the address could be used by malware to overwrite SMRAM or OS kernel memory. This issue was discovered by Insyde engineering during a security review. This issue is fixed in: Kernel 5.0: 05.09.41 Kernel 5.1: 05.17.43 Kernel 5.2: 05.27.30 Kernel 5.3: 05.36.30 Kernel 5.4: 05.44.30 Kernel 5.5: 05.52.30 https://www.insyde.com/security-pledge/SA-2022065
Weakness: CWE-787
Which versions are affected by CVE-2022-30772?
It affects 1 product.
Products include Insyde Kernel.
How do I fix CVE-2022-30772?
No fix has been published for CVE-2022-30772 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-2022-30772 being exploited?
There is no known exploitation of CVE-2022-30772 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-7f9f-p7cj-6p6f.