#VU43803 Buffer overflow in linux-pam - CVE-2011-3149

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU43803

#VU43803 Buffer overflow in linux-pam - CVE-2011-3149

Published: July 22, 2012 / Updated: May 9, 2023


Vulnerability identifier: #VU43803
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2011-3149
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
linux-pam
Software vendor:
git.kernel.org

Description

The vulnerability allows a local user to perform service disruption.

The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).


Remediation

Install update from vendor's website.

External links