Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-3149

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
22/07/2012
Last modified:
11/04/2025

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).

Impact

Vector 2.0
AV:L/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 2.10 LOW
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
2.10
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:* 1.1.4 (including)
cpe:2.3:a:linux-pam:linux-pam:0.99.1.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.2.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.2.1:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.3.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.4.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.5.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.6.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.6.1:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.6.2:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.6.3:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.7.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.7.1:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.8.0:*:*:*:*:*:*:*
cpe:2.3:a:linux-pam:linux-pam:0.99.8.1:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools