Linux Kernel virtio_vq_recordon TOCTOU race condition
CVE-2024-51563 Published on November 12, 2024
bhyve(8) virtio_vq_recordon time-of-check to time-of-use race
The virtio_vq_recordon function is subject to a time-of-check to time-of-use (TOCTOU) race condition.
Vulnerability Analysis
CVE-2024-51563 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity, and a small impact on availability.
Weakness Type
What is a TOCTTOU Vulnerability?
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state. This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.
CVE-2024-51563 has been classified to as a TOCTTOU vulnerability or weakness.
Products Associated with CVE-2024-51563
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Affected Versions
FreeBSD:- Version 14.1-RELEASE and below p6 is affected.
- Version 13.4-RELEASE and below p2 is affected.
- Version 13.3-RELEASE and below p8 is affected.
- Before * is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.