CVE-2024-51563 bhyve(8) virtio_vq_recordon time-of-check to time-of-use race

Medium 6.5 Published Updated

A time-of-check to time-of-use race condition in the FreeBSD bhyve hypervisor's virtio_vq_recordon function may lead to undefined behavior or security issues.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-51563?

CVE-2024-51563 is a medium-severity vulnerability in FreeBSD, published on 12 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The virtio_vq_recordon function is subject to a time-of-check to time-of-use (TOCTOU) race condition.

Weakness: CWE-367

Which versions are affected by CVE-2024-51563?

How do I fix CVE-2024-51563?

No fix has been published for CVE-2024-51563 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-51563 being exploited?

There is no known exploitation of CVE-2024-51563 in the wild and no public exploit code.

Sources

Also known as GHSA-xxc6-q6r3-h584.

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