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Pardus: 2010-76: Python: Multiple Vulnerabilities Print E-mail
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Posted by Benjamin D. Thomas   
Multiple incorrect buffer overflow checks which can be used to cause denial of service in audioop module have been fixed.
------------------------------------------------------------------------
Pardus Linux Security Advisory 2010-76            security@pardus.org.tr
------------------------------------------------------------------------
      Date: 2010-06-15
  Severity: 3
      Type: Local
------------------------------------------------------------------------

Summary
======
Multiple incorrect buffer overflow checks which can be  used  to  cause
denial of service in audioop module have been fixed.


Description
==========
CVE-2010-1634:

Multiple integer overflows in audioop.c in the audioop module in Python
2.6, 2.7, 3.1, and 3.2 allow context-dependent  attackers  to  cause  a
denial  of service  (application  crash)  via  a  large  fragment,  as
demonstrated by a call to audioop.lin2lin with a  long  string  in  the
first argument, leading to a buffer overflow. NOTE: this  vulnerability
exists because of an incorrect fix for CVE-2008-3143.5.



CVE-2010-2089:

The  audioop module  in  Python  2.7  and  3.2  does  not  verify  the
relationships between size arguments and  byte  string  lengths,  which
allows context-dependent attackers to cause a denial of service (memory
corruption and application crash) via crafted arguments, as demonstrated
by a call to  audioop.reverse  with  a  one-byte  string,  a  different
vulnerability than CVE-2010-1634.


Affected packages:

  Pardus 2009:
    python, all before 2.6.5-57-17


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

    pisi up python

References
=========
  * http://bugs.pardus.org.tr/show_bug.cgi?id265

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