Ispravljen je sigurnosni propust programskog paketa SWFTools kojeg je udaljeni napadač mogao iskoristiti za pokretanje zlonamjernog programskog koda te izvođenje DoS napada pomoću posebno oblikovane PNG ili JPEG datoteke.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201204-05
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: SWFTools: User-assisted execution of arbitrary code
     Date: April 17, 2012
     Bugs: #332649
       ID: 201204-05

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

Synopsis
========

A heap-based buffer overflow in SWFTools could result in the execution
of arbitrary code.

Background
==========

SWFTools is a collection of SWF manipulation and generation utilities
written by Rainer Böhme and Matthias Kramm.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-gfx/swftools           <= 0.9.1                 Vulnerable!
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.

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

Integer overflow errors in the "getPNG()" function in png.c and the
"jpeg_load()" function in jpeg.c could cause a heap-based buffer
overflow.

Impact
======

A remote attacker could entice a user to open a specially crafted PNG
or JPEG file, possibly resulting in execution of arbitrary code with
the privileges of the process, or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

Gentoo discontinued support for SWFTools. We recommend that users
unmerge swftools:

  # emerge --unmerge "media-gfx/swftools"

References
==========

[ 1 ] CVE-2010-1516
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1516

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

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

 http://security.gentoo.org/glsa/glsa-201204-05.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
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite. or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2012 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/2.5