Buffer overflow in FreeBSD - CVE-2022-23092
Published: August 13, 2022
Vulnerability identifier: #VU66475
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-23092
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: FreeBSD Foundation
Affected software:
FreeBSD
FreeBSD
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in lib9p implementation used by bhyve(8). A remote user on the guest OS can send a specially crafted message to trigger memory corruption and execute arbitrary code on the host OS.
How to mitigate CVE-2022-23092
Install updates from vendor's website.