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CVE Database

CVE-2011-3148

Impact: Moderate
Public: 2011-10-24
Bugzilla: 746619: CVE-2011-3148 pam (pam_env): Stack-based buffer overflow by parsing user's pam_environment file

Details

The MITRE CVE dictionary describes this issue as:

Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam) before 1.1.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a long string of white spaces at the beginning of the ~/.pam_environment file.

Find out more about CVE-2011-3148 from the MITRE CVE dictionary and NIST NVD.

Statement

This issue did not affect the versions of pam package as shipped with Red Hat Enterprise Linux 5.

CVSS v2 metrics

Base Score: 3.7
Base Metrics: AV:L/AC:H/Au:N/C:P/I:P/A:P
Access Vector: Local
Access Complexity: High
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (pam) RHSA-2013:0521 February 20, 2013

External References

Acknowledgements

Red Hat would like to thank Kees Cook of Google ChromeOS Team for reporting this issue.

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.