Security Advisory

CVE-2022-23092

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2024-02-15 05:13:50

Last updated 2025-02-13 16:29:03

Assigner freebsd

State PUBLISHED

Description

The implementation of lib9ps 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 bhyves Capsicum sandbox.

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