Vulnerability Monitor

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CVE-2011-3149

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).

Published

2012-07-22T17:55:01.103

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 2.1 (LOW)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

3.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application linux-pam linux-pam ≤ 1.1.4 Yes
Application linux-pam linux-pam 0.99.1.0 Yes
Application linux-pam linux-pam 0.99.2.0 Yes
Application linux-pam linux-pam 0.99.2.1 Yes
Application linux-pam linux-pam 0.99.3.0 Yes
Application linux-pam linux-pam 0.99.4.0 Yes
Application linux-pam linux-pam 0.99.5.0 Yes
Application linux-pam linux-pam 0.99.6.0 Yes
Application linux-pam linux-pam 0.99.6.1 Yes
Application linux-pam linux-pam 0.99.6.2 Yes
Application linux-pam linux-pam 0.99.6.3 Yes
Application linux-pam linux-pam 0.99.7.0 Yes
Application linux-pam linux-pam 0.99.7.1 Yes
Application linux-pam linux-pam 0.99.8.0 Yes
Application linux-pam linux-pam 0.99.8.1 Yes
Application linux-pam linux-pam 0.99.9.0 Yes
Application linux-pam linux-pam 0.99.10.0 Yes
Application linux-pam linux-pam 1.0.0 Yes
Application linux-pam linux-pam 1.0.1 Yes
Application linux-pam linux-pam 1.0.2 Yes
Application linux-pam linux-pam 1.0.3 Yes
Application linux-pam linux-pam 1.0.4 Yes
Application linux-pam linux-pam 1.1.0 Yes
Application linux-pam linux-pam 1.1.1 Yes
Application linux-pam linux-pam 1.1.2 Yes
Application linux-pam linux-pam 1.1.3 Yes
References