Gentoo Linux Security Advisory GLSA 200703-12 - Frank Benkstein discovered a possible NULL pointer dereference in apps/silcd/command.c if a new channel is created without specifying a valid hmac or cipher algorithm name. Versions less than 1.0.2-r1 are affected.
4a930d9bb639ddf1913f5162ada3ed189a110cd8a744da858d55a99a513b79c2
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Gentoo Linux Security Advisory GLSA 200703-12
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http://security.gentoo.org/
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Severity: Normal
Title: SILC Server: Denial of Service
Date: March 14, 2007
Bugs: #169599
ID: 200703-12
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Synopsis
========
SILC Server is affected by a Denial of Service vulnerability.
Background
==========
SILC Server is a server for the Secure Internet Live Conferencing
(SILC) protocol.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 net-im/silc-server < 1.0.2-r1 >= 1.0.2-r1
Description
===========
Frank Benkstein discovered a possible NULL pointer dereference in
apps/silcd/command.c if a new channel is created without specifying a
valid hmac or cipher algorithm name.
Impact
======
A remote attacker could cause the server to crash, resulting in a
Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All SILC Server users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-im/silc-server-1.0.2-r1"
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200703-12.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 2007 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