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Pardus: 2010-119: OpenSSL: Use-after-free Print E-mail
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Posted by Benjamin D. Thomas   
A vulnerability has been fixed in OpenSSL, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise an application using the library.
------------------------------------------------------------------------
Pardus Linux Security Advisory 2010-119           security@pardus.org.tr
------------------------------------------------------------------------
      Date: 2010-09-03
  Severity: 3
      Type: Local
------------------------------------------------------------------------

Summary
======
A vulnerability has been fixed in OpenSSL, which can  be  exploited  by
malicious people to cause a DoS (Denial  of  Service)  and  potentially
compromise an application using the library.


Description
==========
CVE-2010-2939:

Double free vulnerability in the ssl3_get_key_exchange function in  the
OpenSSL client (ssl/s3_clnt.c) in OpenSSL  1.0.0a,  0.9.8,  0.9.7,  and
possibly other versions,  when  using  ECDH,  allows  context-dependent
attackers to cause a denial of service  (crash)  and  possibly  execute
arbitrary code via a crafted private key with an invalid  prime.  NOTE:
some sources refer to this as a use-after-free issue.


Affected packages:

  Pardus 2009:
    openssl, all before 0.9.8k-29-12


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

    pisi up openssl

References
=========
  * http://bugs.pardus.org.tr/show_bug.cgi?id982
  * http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-2939

------------------------------------------------------------------------
 
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