U radu programskog paketa Network Block Device (nbd) uočena su dva nova sigurnosna propusta. Udaljeni ih napadač može iskoristiti za DoS (eng. Denial of Service) napad te pokretanje zlonamjernog programskog koda.

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Gentoo Linux Security Advisory                           GLSA 201206-35
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                                            http://security.gentoo.org/
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 Severity: High
    Title: nbd: Multiple vulnerabilities
     Date: June 25, 2012
     Bugs: #353097, #372891
       ID: 201206-35

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Synopsis
========

Multiple vulnerabilities were found in nbd, which could lead to remote
execution of arbitrary code.

Background
==========

nbd is a userland client/server for kernel network block device.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-block/nbd                < 2.9.22                  >= 2.9.22

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

Multiple vulnerabilities have been discovered in nbd. Please review the
CVE identifiers referenced below for details.

Impact
======

nbd allows remote attackers to cause a denial of service (NULL pointer
dereference and crash) or the execution of arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All nbd users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-block/nbd-2.9.22"

References
==========

[ 1 ] CVE-2011-0530
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0530
[ 2 ] CVE-2011-1925
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1925

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

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

 http://security.gentoo.org/glsa/glsa-201206-35.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