[SA19615] NetBSD SIOCGIFALIAS "ioctl()" Denial of Service Vulnerability

TITLE:
NetBSD SIOCGIFALIAS "ioctl()" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA19615

VERIFY ADVISORY:
http://secunia.com/advisories/19615/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

OPERATING SYSTEM:
NetBSD 1.x
http://secunia.com/product/255/

DESCRIPTION:
A vulnerability has been reported in NetBSD, which can be exploited
by malicious, local users to cause a DoS (Denial of Service).

The vulnerability is caused due to a NULL pointer dereference error
in the kernel when an attempt is made to gather information on a
non-existent alias of a network interface via the SIOCGIFALIAS
"ioctl()".

SOLUTION:
Fixes are not available for the 1.6 branch. Upgrade to a later
version for which fixes are available (see vendor advisory for
additional information).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Sean Boudreau.

ORIGINAL ADVISORY:
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-012.txt.asc

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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