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TUCoPS :: Linux :: Gentoo :: hack0439.htm

Firebird Buffer Overflow GLSA 200405-18



[ GLSA 200405-18 ] Buffer Overflow in Firebird

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Gentoo Linux Security Advisory                           GLSA 200405-18
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                                            http://security.gentoo.org/ 
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  Severity: High
     Title: Buffer Overflow in Firebird
      Date: May 23, 2004
      Bugs: #20837
        ID: 200405-18

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Synopsis
========

A buffer overflow via environmental variables in Firebird may allow a
local user to manipulate or destroy local databases and trojan the
Firebird binaries.

Background
==========

Firebird is an open source relational database that runs on Linux,
Windows, and various UNIX systems.

Affected packages
=================

    -------------------------------------------------------------------
     Package          /   Vulnerable   /                    Unaffected
    -------------------------------------------------------------------
  1  dev-db/firebird         < 1.5                              >= 1.5

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

A buffer overflow exists in three Firebird binaries (gds_inet_server,
gds_lock_mgr, and gds_drop) that is exploitable by setting a large
value to the INTERBASE environment variable.

Impact
======

An attacker could control program execution, allowing privilege
escalation to the UID of Firebird, full access to Firebird databases,
and trojaning the Firebird binaries. An attacker could use this to
compromise other user or root accounts.

Workaround
==========

There is no known workaround.

Resolution
==========

All users should upgrade to the latest version of Firebird:

    # emerge sync

    # emerge -pv ">=dev-db/firebird-1.5"
    # emerge ">=dev-db/firebird-1.5"

References
==========

  [ 1 ] Bugtraq Security Announcement
        http://securityfocus.com/bid/7546/info/ 
  [ 2 ] Sourceforge BugTracker Announcement

http://sourceforge.net/tracker/?group_id=9028&atid=109028&func=detai l&aid=739480

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

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

     http://security.gentoo.org/glsa/glsa-200405-18.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 2004 Gentoo Technologies, 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/1.0 

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