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Category:   Application (Firewall)  >   Pf Vendors:   NetBSD
(NetBSD Issues Fix) OpenBSD pf Bug in pf_test() Lets Remote Users Deny Service
SecurityTracker Alert ID:  1022430
SecurityTracker URL:  http://securitytracker.com/id/1022430
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jun 23 2009
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in OpenBSD pf. A remote user can cause denial of service conditions. NetBSD is affected.

A remote user can send a specially crafted IP packet to trigger a null pointer dereference in the packet translation code, causing a kernel panic.

The vulnerability resides in 'sys/net/pf.c' in the pf_test() function.

The vendor was notified on April 9, 2009.

Rembrandt reported this vulnerability.

The original advisory is available at:

http://helith.net/txt/openbsd_4.3-current_pf_null_pointer_dereference_kernel_panic.txt

Impact:   A remote user can cause a kernel panic.
Solution:   NetBSD has issued a fix for NetBSD, which is affected by this vulnerability.

The NetBSD advisory is available at:

http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-001.txt.asc

Cause:   State error
Underlying OS:  UNIX (NetBSD)

Message History:   This archive entry is a follow-up to the message listed below.
Apr 12 2009 OpenBSD pf Bug in pf_test() Lets Remote Users Deny Service



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