CVE-2013-5710

Severity: low (CVSS 3.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-09-23 · updated 2026-06-16
Weakness: CWE-264

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.

Affected products

FreeBSD: 8.0, 8.3, 8.4, 9.0, 9.1, 9.2

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

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