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[ GLSA 201206-31 ] Linux-PAM: Multiple vulnerabilities
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PostPosted: Mon Jun 25, 2012 10:26 pm    Post subject: [ GLSA 201206-31 ] Linux-PAM: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Linux-PAM: Multiple vulnerabilities (GLSA 201206-31)
Severity: high
Exploitable: local
Date: June 25, 2012
Bug(s): #343399, #386273, #388431
ID: 201206-31

Synopsis

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.


Background

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: sys-libs/pam
Vulnerable: < 1.1.5
Unaffected: >= 1.1.5
Architectures: All supported architectures


Description

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


Impact

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.


Workaround

There is no known workaround at this time.

Resolution

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


References

CVE-2010-3316
CVE-2010-3430
CVE-2010-3431
CVE-2010-3435
CVE-2010-3853
CVE-2010-4706
CVE-2010-4707
CVE-2010-4708
CVE-2011-3148
CVE-2011-3149
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