CVE-2022-23092 - Out-of-bounds
CVE Information
Original CVE data
The implementation of lib9p's handling of RWALK messages was missing a bounds check needed when unpacking the message contents. The missing check means that the receipt of a specially crafted message will cause lib9p to overwrite unrelated memory. The bug can be triggered by a malicious bhyve guest kernel to overwrite memory in the bhyve(8) process. This could potentially lead to user-mode code execution on the host, subject to bhyve's Capsicum sandbox.
Basic Analysis
Common vulnerability metrics
Out-of-bounds
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No exploit code is reported to exist.
Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog
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No sightings of the vulnerability within threat reports.
Cybersecurity Frameworks
How the vulnerability maps against various cybersecurity frameworks
Compliance Impact
How the submited vulnerability affects compliance
Web Application Security Frameworks
Applicable if the issue likely affects a web application