CVE-2022-23084

Potential jail escape vulnerabilities in netmap

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory freebsd.org
Affected: FreeBSD FreeBSD
Published at:
Updated at:

References

Link Tags
https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.asc vendor advisory
https://security.netapp.com/advisory/ntap-20240419-0003/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-23084?
CVE-2022-23084 has been scored as a high severity vulnerability.
How to fix CVE-2022-23084?
To fix CVE-2022-23084, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-23084 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23084 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-23084?
CVE-2022-23084 affects FreeBSD FreeBSD.
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