CVE-2013-5710
low
CVSS v3
—
CVSS v2
3.7
VIR risk
3.7
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: cve@mitre.org — http://www.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.asc
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| freebsd | 8.0 | affected | |
| freebsd | 8.3 | affected | |
| freebsd | 8.4 | affected | |
| freebsd | 9.0 | affected | |
| freebsd | 9.1 | affected | |
| freebsd | 9.2 | affected | |
References
- http://secunia.com/advisories/54861
- http://svnweb.freebsd.org/base?view=revision&revision=255442
- http://www.debian.org/security/2013/dsa-2769
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.asc
- http://www.securitytracker.com/id/1029015
- http://secunia.com/advisories/54861
- http://svnweb.freebsd.org/base?view=revision&revision=255442
- http://www.debian.org/security/2013/dsa-2769
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.asc
- http://www.securitytracker.com/id/1029015
CWEs
CWE-264
Verify integrity in audit chain (admin only). AS-IS.