CVE-2022-34401 Memory corruption in CPG BIOS
A local attacker can exploit a stack buffer overflow in Dell BIOS via SMI to execute arbitrary code in SMRAM, requiring a firmware patch.
- 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-2022-34401?
CVE-2022-34401 is a high-severity memory corruption vulnerability in Dell CPG BIOS, published on 18 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Dell BIOS contains a stack based buffer overflow vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to send larger than expected input to a parameter in order to gain arbitrary code execution in SMRAM.
Which versions are affected by CVE-2022-34401?
It affects 3 products.
Products include Dell Alienware M15 A6 Firmware, Dell Alienware M17 R5 Firmware, Dell G15 5525 Firmware.
How do I fix CVE-2022-34401?
No fix has been published for CVE-2022-34401 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-2022-34401 being exploited?
There is no known exploitation of CVE-2022-34401 in the wild and no public exploit code.
Other vulnerabilities in Dell CPG BIOS
Sources
Also known as GHSA-xr3m-j4q9-hqr4.