TITLE:
NetBSD if_bridge Kernel Memory Disclosure Vulnerability

SECUNIA ADVISORY ID:
SA19464

VERIFY ADVISORY:
http://secunia.com/advisories/19464/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information

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 gain knowledge of potentially sensitive
information.

The vulnerability is caused due to the bridge ioctl calls not zeroing
out used stack memory, which may expose random portions of kernel
memory to a calling process.

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 Xin Li.

ORIGINAL ADVISORY:
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-005.txt.asc

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