CVE-2022-23084 - CVE House
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Status published Unknown CVE-2022-23084

Potential jail escape vulnerabilities in netmap

Vulnerability Description

The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

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

References

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Affected Vendor

Affected Software

FreeBSD
Vulnerable Versions:
13.1-RC1, 13.0-RELEASE, 12.3-RELEASE

Timeline

Official Publish: February 15th, 2024
Last Modified: February 13th, 2025
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.