#VU41395 Permissions, Privileges, and Access Controls in Linux kernel - CVE-2014-5207

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Main Vulnerability Database Vulnerabilities #VU41395

#VU41395 Permissions, Privileges, and Access Controls in Linux kernel - CVE-2014-5207

Published: August 18, 2014 / Updated: August 11, 2020


Vulnerability identifier: #VU41395
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2014-5207
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: Public exploit is available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local #AU# to execute arbitrary code.

fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a "mount -o remount" command within a user namespace.


Remediation

Install update from vendor's website.

External links