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Gentoo Linux Security Advisory GLSA 200512-14
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http://security.gentoo.org/
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Severity: High
Title: NBD Tools: Buffer overflow in NBD server
Date: December 23, 2005
Bugs: #116314
ID: 200512-14
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Synopsis
========
The NBD server is vulnerable to a buffer overflow that may result in
the execution of arbitrary code.
Background
==========
The NBD Tools are the Network Block Device utilities allowing one to
use remote block devices over a TCP/IP network. It includes a userland
NBD server.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-block/nbd < 2.8.2-r1 >= 2.8.2-r1
Description
===========
Kurt Fitzner discovered that the NBD server allocates a request buffer
that fails to take into account the size of the reply header.
Impact
======
A remote attacker could send a malicious request that can result in the
execution of arbitrary code with the rights of the NBD server.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All NBD Tools users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-block/nbd-2.8.2-r1"
References
==========
[ 1 ] CVE-2005-3534
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3534
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200512-14.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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