{"id":"CVE-2013-5710","aliases":["DSA-2769-1","EUVD-2013-5547","GHSA-62f8-63x5-qg6r"],"status":"published","title":"The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2...","description":"The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.","severity":{"version":"2.0","score":3.7,"vector":"AV:L/AC:H/Au:N/C:P/I:P/A:P","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00294,"percentile":0.22193,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2013-09-23T20:00:00Z","modified":"2026-06-16T23:59:17Z","affected":[{"source":"osv","ecosystem":"Debian:7","package":"kfreebsd-9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0-10+deb70.4"}]}],"versions":["9.0-10","9.0-10+deb70.1","9.0-10+deb70.2","9.0-10+deb70.3"],"bundled":2}],"products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://secunia.com/advisories/54861","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.securitytracker.com/id/1029015","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.debian.org/security/2013/dsa-2769","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"http://www.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","Vendor Advisory"]},{"url":"http://svnweb.freebsd.org/base?view=revision\u0026revision=255442","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-5710"},{"url":"https://github.com/advisories/GHSA-62f8-63x5-qg6r"}],"sources":{"cve":[{"id":"CVE-2013-5710","description":"The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.","status":"published","published":"2013-09-23T20:00:00Z","modified":"2024-08-06T17:22:30.919Z","updated_at":"2026-11-02T14:34:55.098814Z"}],"euvd":[{"id":"EUVD-2013-5547","description":"The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.","status":"published","published":"2013-09-23T20:00:00Z","modified":"2024-08-06T17:22:30Z","updated_at":"2026-11-03T01:56:28.286421Z"}],"ghsa":[{"id":"GHSA-62f8-63x5-qg6r","title":"The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2...","description":"The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.","status":"published","published":"2022-05-17T04:59:45Z","modified":"2023-01-28T05:02:58Z","updated_at":"2026-11-02T14:43:53.106327Z"}],"nvd":[{"id":"CVE-2013-5710","description":"The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.","status":"published","published":"2013-09-23T20:55:07.433Z","modified":"2026-06-16T23:59:17.5Z","cvss":[{"version":"2.0","score":3.7,"vector":"AV:L/AC:H/Au:N/C:P/I:P/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:38.715467Z"}],"osv":[{"id":"DSA-2769-1","title":"kfreebsd-9 - several","status":"published","published":"2013-10-08T00:00:00Z","modified":"2026-03-09T01:20:08.852488Z","updated_at":"2026-11-02T15:46:15.489951Z"}]}}