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Vulnerability CVE-2022-23092
Published: 2024-02-15
| Description: |
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. |
References: |
https://security.freebsd.org/advisories/FreeBSD-SA-22:12.lib9p.asc
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