Vulnerability in FreeBSD
CVE-2013-5710
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 3.7 (Low). Vector: AV:L/AC:H/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.003 (19.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- FreeBSD — versions 8.0, 8.3, 8.4
Weakness classification (CWE)
References
- secunia.com/advisories/54861 (third-party-advisory)
- www.securitytracker.com/id/1029015 (vdb-entry)
- www.debian.org/security/2013/dsa-2769 (vendor-advisory)
- www.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.asc (vendor-advisory, Vendor Advisory)
- svnweb.freebsd.org/base