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Gentoo Linux Security Advisory                           GLSA 200505-15
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  Severity: Normal
     Title: gdb: Multiple vulnerabilities
      Date: May 20, 2005
      Bugs: #88398, #91398, #91654
        ID: 200505-15

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Synopsis
========

Multiple vulnerabilities have been discovered in the GNU debugger,
potentially allowing the execution of arbitrary code.

Background
==========

gdb is the GNU project's debugger, facilitating the analysis and
debugging of applications. The BFD library provides a uniform method of
accessing a variety of object file formats.

Affected packages
=================

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  sys-devel/gdb      < 6.3-r3                             >= 6.3-r3

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

Tavis Ormandy of the Gentoo Linux Security Audit Team discovered an
integer overflow in the BFD library, resulting in a heap overflow. A
review also showed that by default, gdb insecurely sources
initialisation files from the working directory.

Impact
======

Successful exploitation would result in the execution of arbitrary code
on loading a specially crafted object file or the execution of
arbitrary commands.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All gdb users should upgrade to the latest stable version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-devel/gdb-6.3-r3"

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200505-15.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0

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