#VU42540 Permissions, Privileges, and Access Controls in FreeBSD - CVE-2013-5710

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Main Vulnerability Database Vulnerabilities #VU42540

#VU42540 Permissions, Privileges, and Access Controls in FreeBSD - CVE-2013-5710

Published: September 23, 2013 / Updated: August 10, 2020


Vulnerability identifier: #VU42540
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-5710
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
FreeBSD
Software vendor:
FreeBSD Foundation

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

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.


Remediation

Install update from vendor's website.

External links