CVE-2020-8332 Race condition in System x
A race condition in legacy BIOS USB drivers allows arbitrary code execution on affected Lenovo and IBM System x servers.
- 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-2020-8332?
CVE-2020-8332 is a medium-severity vulnerability in IBM System x, published on 14 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A potential vulnerability in the SMI callback function used in the legacy BIOS mode USB drivers in some legacy Lenovo and IBM System x servers may allow arbitrary code execution. Servers operating in UEFI mode are not affected.
Weakness: CWE-367
Which versions are affected by CVE-2020-8332?
It affects 18 products.
Products include Lenovo Bladecenter Hs23 Firmware, Lenovo Bladecenter Hs23e Firmware, Lenovo Compute Node-X440 Firmware, Lenovo Flex System X220 Firmware, Lenovo Flex System X240 Firmware, Lenovo Flex System X440 Firmware and 12 more.
How do I fix CVE-2020-8332?
No fix has been published for CVE-2020-8332 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-8332 being exploited?
There is no known exploitation of CVE-2020-8332 in the wild and no public exploit code.
Sources
Also known as GHSA-5pp7-xmxh-rxh5.