VulnerabilityAnalyzed
CVE-2022-23084
This time-of-check to time-of-use bug could lead to kernel memory corruption.
HIGH 7.5EPSS 0.24%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-367
- Affected
- freebsd/freebsd
- Source
- secteam@freebsd.org
References
- https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.ascVendor Advisory
- https://security.netapp.com/advisory/ntap-20240419-0003/Third Party Advisory
- https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.ascVendor Advisory
- https://security.netapp.com/advisory/ntap-20240419-0003/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.