CVEvulnerability

CVE-2022-23092

8.8 HIGH Published 2024-02-15 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-02-15
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

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.

Affected configurations

• freebsd freebsd 13.0 • freebsd freebsd 13.1

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References