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[ GLSA 201402-12 ] PAM S/Key: Information disclosure
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PostPosted: Sun Feb 09, 2014 11:26 am    Post subject: [ GLSA 201402-12 ] PAM S/Key: Information disclosure Reply with quote

Gentoo Linux Security Advisory

Title: PAM S/Key: Information disclosure (GLSA 201402-12)
Severity: normal
Exploitable: local
Date: February 09, 2014
Bug(s): #482588
ID: 201402-12

Synopsis

PAM S/Key does not clear provided credentials from memory, allowing
local attackers to gain access to cleartext credentials.


Background

PAM S/Key is a pluggable authentication module for the OpenBSD
Single-key Password system.


Affected Packages

Package: sys-auth/pam_skey
Vulnerable: < 1.1.5-r5
Unaffected: >= 1.1.5-r5
Architectures: All supported architectures


Description

Ulrich Müller reported that a Gentoo patch to PAM S/Key does not remove
credentials provided by the user from memory.


Impact

A local attacker with privileged access could inspect a memory dump to
gain access to cleartext credentials provided by users.


Workaround

There is no known workaround at this time.

Resolution

All PAM S/Key users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-auth/pam_skey-1.1.5-r5"
   


References

CVE-2013-4285
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