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[Full-disclosure] [PLSA 2008-34] GNU ed: Heap Overflow

From: Pınar Yanardağ <pinar_at_nospam>
Date: Mon Sep 01 2008 - 01:14:09 GMT
To: pardus-security@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

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

Description

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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

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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

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• 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 _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/