GLSA 200703-12: SILC Server: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	SILC Server: Denial of Service
Date:	03/14/2007
Bugs:	#169599
ID:	200703-12

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

Package	Vulnerable	Unaffected	Architecture(s)
net-im/silc-server	< 1.0.2-r1	>= 1.0.2-r1	All supported architectures

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"

References

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 https://bugs.gentoo.org.