Permissions, Privileges, and Access Controls in FreeBSD - CVE-2022-23091
Published: August 13, 2022
Vulnerability identifier: #VU66474
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-23091
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: FreeBSD Foundation
Affected software:
FreeBSD
FreeBSD
Detailed vulnerability description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to an error in virtual mapping implementation. An local unprivileged process can maintain a mapping of a page after it is freed, allowing that process to read private data belonging to other processes or the kernel.
How to mitigate CVE-2022-23091
Install updates from vendor's website.