CVE-2011-3149

linux-pam < 1.1.5 - Denial of Service via Environment Variable Expansion Overflow

Title source: llm
STIX 2.1

Description

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).

References (6)

Core 6
Core References
Third Party Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-201206-31.xml
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1237-1
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/46583
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/49711

Scores

EPSS 0.0053
EPSS Percentile 41.2%

Details

CWE
CWE-119
Status published
Products (26)
linux-pam/linux-pam 0.99.1.0
linux-pam/linux-pam 0.99.2.0
linux-pam/linux-pam 0.99.2.1
linux-pam/linux-pam 0.99.3.0
linux-pam/linux-pam 0.99.4.0
linux-pam/linux-pam 0.99.5.0
linux-pam/linux-pam 0.99.6.0
linux-pam/linux-pam 0.99.6.1
linux-pam/linux-pam 0.99.6.2
linux-pam/linux-pam 0.99.6.3
... and 16 more
Published Jul 22, 2012
Tracked Since Feb 18, 2026