CVE-2022-35894 Information disclosure in n/a
An attacker can exploit an untrusted pointer in the InsydeH2O BIOS SMI handler to disclose sensitive information from memory.
- 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-2022-35894?
CVE-2022-35894 is a medium-severity vulnerability in Insyde Insydeh2o, published on 22 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The SMI handler for the FwBlockServiceSmm driver uses an untrusted pointer as the location to copy data to an attacker-specified buffer, leading to information disclosure.
Weakness: CWE-401
Which versions are affected by CVE-2022-35894?
It affects 1 product.
Products include Insyde Insydeh2o.
How do I fix CVE-2022-35894?
No fix has been published for CVE-2022-35894 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-35894 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-35894 exists.
Other vulnerabilities in Insyde Insydeh2o
Sources
Also known as GHSA-9w4x-cwgm-cchf.