Kod programskog paketa QtGui uočen je i ispravljen sigurnosni nedostatak kojeg su zlonamjerni napadači mogli iskoristiti za proizvoljno izvršavanje programskog koda i DoS napad.
Primijećeno je da dolazi do preljeva međuspremnika u programskoj komponenti "qtiffhandler.cpp".
Posljedica:
Sigurnosni propust udaljeni napadači mogu iskoristiti za proizvoljno izvršavanje programskog koda i napad uskraćivanjem usluga (eng. Denial of Service, DoS).
Rješenje:
Svim korisnicima se preporuča korištene ispravljene inačice ranjivog programskog paketa.
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Gentoo Linux Security Advisory GLSA 201206-02
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http://security.gentoo.org/
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Severity: Normal
Title: QtGui: User-assisted execution of arbitrary code
Date: June 03, 2012
Bugs: #384089
ID: 201206-02
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Synopsis
========
A buffer overflow in QtGui could result in execution of arbitrary code
or Denial of Service.
Background
==========
QtGui is a module for the Qt toolkit.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 x11-libs/qt-gui < 4.7.4-r1 >= 4.7.4-r1
Description
===========
An error in qtiffhandler.cpp could cause a buffer overflow.
Impact
======
A remote attacker could entice a user to open a specially crafted TIFF
image with an application linked against QtGui, 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
==========
All QtGui users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/qt-gui-4.7.4-r1"
Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these
packages.
References
==========
[ 1 ] CVE-2011-3194
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3194
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201206-02.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
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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
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