{"id":"CVE-2022-23084","aliases":["EUVD-2022-28189","GHSA-qg2q-3q8w-8v7r"],"status":"published","title":"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.\n\nOn systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00243,"percentile":0.15665,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2024-02-15T04:52:09Z","modified":"2026-06-17T04:29:28Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.asc","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20240419-0003/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23084"},{"url":"https://security.netapp.com/advisory/ntap-20240419-0003"},{"url":"https://github.com/advisories/GHSA-qg2q-3q8w-8v7r"}],"sources":{"cve":[{"id":"CVE-2022-23084","title":"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.\n\nOn systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.","status":"published","published":"2024-02-15T04:52:09.645Z","modified":"2025-02-13T16:28:58.743Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:34:29.478363Z"}],"euvd":[{"id":"EUVD-2022-28189","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.\n\nOn systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.","status":"published","published":"2024-02-15T04:52:09Z","modified":"2025-02-13T16:28:58Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:03:52.752782Z"}],"ghsa":[{"id":"GHSA-qg2q-3q8w-8v7r","title":"The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted...","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.\n\nOn systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.","status":"published","published":"2024-02-15T06:31:35Z","modified":"2024-08-29T21:32:06Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:58:08.12992Z"}],"nvd":[{"id":"CVE-2022-23084","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.\n\nOn systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.","status":"published","published":"2024-02-15T05:15:08.833Z","modified":"2026-06-17T04:29:28.427Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:07:40.49892Z"}]}}