CVE-2023-5370 arm64 boot CPUs may lack speculative execution protections
Attackers can bypass speculative execution protections on CPU 0 in FreeBSD due to initialization order errors, potentially enabling side-channel attacks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-5370?
CVE-2023-5370 is a medium-severity vulnerability in Freebsd Freebsd, published on 4 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
On CPU 0 the check for the SMCCC workaround is called before SMCCC support has been initialized. This resulted in no speculative execution workarounds being installed on CPU 0.
Weakness: CWE-665
Which versions are affected by CVE-2023-5370?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2023-5370?
No fix has been published for CVE-2023-5370 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-5370 being exploited?
There is no known exploitation of CVE-2023-5370 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-vf42-37cv-443p.