Insufficient Bounds Checking in nmreq_copyin Could Lead to Kernel Memory Corruption
CVE-2022-23085

8.2HIGH

Key Information:

Vendor

FreeBSD

Status
FreeBSD
Vendor
CVE Published:
15 February 2024

What is CVE-2022-23085?

A vulnerability exists within the FreeBSD operating system's netmap framework where insufficient bounds checking on a user-provided integer option leads to potential kernel memory corruption. If netmap is included in the devfs_ruleset, a privileged process operating in a jail environment can manipulate the host system, posing a significant security risk. This flaw underscores the importance of validating user inputs to maintain system integrity.

Affected Version(s)

FreeBSD 13.1-RC1

FreeBSD 13.0-RELEASE

FreeBSD 12.3-RELEASE

References

https://security.freebsd.org/advisories/FreeBSD-SA-22:04....
vendor-advisory
https://security.netapp.com/advisory/ntap-20240322-0004/

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Reno Robert
Lucas Leong (@_wmliang_)
Trend Micro Zero Day Initiative
.