Pardus alert 2011-40 (openssh)

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Meltem  <meltem@pardus.org.tr> 
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pardus-security@pardus.org.tr 
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[Pardus-security]  [PLSA 2011-40] OpenSSH: Legacy Certificate 
Date:
    	     
 
Mon, 14 Feb 2011 12:26:32 +0200
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<201102141226.32622.meltem@pardus.org.tr>
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Article, Thread
              
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Pardus Linux Security Advisory 2011-40            security@pardus.org.tr
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      Date: 2011-02-14
  Severity: 4
      Type: Remote
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Summary
=======

A vulnerability has been fixed in PostgreSQL, which can potentially  be 
exploited by malicious people to obtain sensitive contents or to conduct
hash collision attacks 


Description
===========

CVE-2011-0539: 

The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6  and  5.7, 
when generating legacy certificates using the -t command-line option in 
ssh-keygen, does not initialize the  nonce  field,  which  might  allow 
remote attackers to obtain sensitive stack memory contents or  make  it 
easier to conduct hash collision attacks. 


Affected packages:

  Pardus 2009:
    openssh, all before 5.6_p1-31-7


Resolution
==========

There are update(s) for openssh. You can update them via Package Manager
or with a single command from console: 

    pisi up openssh

References
==========

  * http://bugs.pardus.org.tr/show_bug.cgi?id=16747
  * http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-...

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