[PLSA 2008-34] GNU ed: Heap Overflow

[Pınar Yanardağ <pinar () pardus org tr>]

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Pardus Linux Security Advisory 2008-34            security () pardus org tr
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       Date: 2008-09-01
   Severity: 2
       Type: Remote
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Summary
=======

A vulnerability was reported  in  GNU  ed.  A  remote  user  can  cause
arbitrary code to be executed on the target user's system.


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

A remote user can create a specially crafted file that, when  processed
by the target user, will trigger a heap overflow and potentially execute
arbitrary code on the  target  system.  The  code  will  run  with  the
privileges of the target user.


The vulnerability resides in strip_escapes() in signal.c.

Note: This vulnerability found by Alfredo  Ortega  from  Core  Security
Technologies.


Affected packages:

   Pardus 2008:
     ed, all before 1.0-9-2
   Pardus 2007:
     ed, all before 1.0-7-8


Resolution
==========

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

   Pardus 2008:
     pisi up ed

   Pardus 2007:
     pisi up ed


References
==========

   * http://bugs.pardus.org.tr/show_bug.cgi?id=8092
   * http://www.securitytracker.com/alerts/2008/Aug/1020734.html
   * http://lists.gnu.org/archive/html/bug-ed/2008-06/msg00000.html

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-- 
Pınar Yanardağ
Pardus Security Team
http://security.pardus.org.tr


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