GLSA 201206-31: Linux-PAM: Multiple vulnerabilities

Title:Linux-PAM: Multiple vulnerabilities
Bugs: #343399, #386273, #388431


Multiple vulnerabilities have been found in Linux-PAM, allowing local attackers to possibly gain escalated privileges, cause a Denial of Service, corrupt data, or obtain sensitive information.


Linux-PAM (Pluggable Authentication Modules) is an architecture allowing the separation of the development of privilege granting software from the development of secure and appropriate authentication schemes.

Affected packages

Package Vulnerable Unaffected Architecture(s)
sys-libs/pam < 1.1.5 >= 1.1.5 All supported architectures


Multiple vulnerabilities have been discovered in Linux-PAM. Please review the CVE identifiers referenced below for details.


A local attacker could use specially crafted files to cause a buffer overflow, possibly resulting in privilege escalation or Denial of Service. Furthermore, a local attacker could execute specially crafted programs or symlink attacks, possibly resulting in data loss or disclosure of sensitive information.


There is no known workaround at this time.


All Linux-PAM users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-libs/pam-1.1.5"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since November 25, 2011. It is likely that your system is already no longer affected by this issue.



This GLSA and any updates to it are available for viewing at the Gentoo Security Website:


Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to or alternatively, you may file a bug at


Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

Thank you!