Bug 171386 - CVE-2005-3275 NAT DoS
Summary: CVE-2005-3275 NAT DoS
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: kernel
Version: 3.0
Hardware: All
OS: Linux
medium
high
Target Milestone: ---
Assignee: Don Howard
QA Contact: Brian Brock
URL:
Whiteboard: public=20050722,impact=important,sour...
Depends On:
Blocks: 168424
TreeView+ depends on / blocked
 
Reported: 2005-10-21 12:54 UTC by Mark J. Cox
Modified: 2007-11-30 22:07 UTC (History)
4 users (show)

Fixed In Version: RHSA-2006-0140
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-01-19 16:01:29 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2006:0140 0 normal SHIPPED_LIVE Important: kernel security update 2006-01-19 05:00:00 UTC

Description Mark J. Cox 2005-10-21 12:54:07 UTC 
CVE-2005-3275 states:
        The NAT code (1) ip_nat_proto_tcp.c and (2) ip_nat_proto_udp.c
        in Linux kernel 2.6 before 2.6.13 and 2.4 before 2.4.32-rc1
        incorrectly declares a variable to be static, which allows
        remote attackers to cause a denial of service (memory
        corruption) by causing two packets for the same protocol to be
        NATed at the same time, which leads to memory corruption.

http://linux.bkbits.net:8080/linux-2.4/cset@42ed94a6GH4Evdcy1opShq3w0GHUWQ

This issue was already fixed in EL4 in linux-2.6.12-network.patch but not in EL3
which looks vulnerable to this issue.
Comment 1 Ernie Petrides 2005-10-21 22:28:57 UTC 
RHEL3 looks vulnerable to me, too.
Comment 2 Ernie Petrides 2005-10-28 02:32:41 UTC 
Reassigning to Don at Linda's request.
Comment 3 Ernie Petrides 2005-11-03 01:54:35 UTC 
A fix for this problem has just been committed to the RHEL3 U7
patch pool this evening (in kernel version 2.4.21-37.8.EL).
Comment 5 Ernie Petrides 2006-01-11 23:34:06 UTC 
A fix for this problem has also been committed to the RHEL3 E7
patch pool this evening (in kernel version 2.4.21-37.0.1.EL).
Comment 7 Red Hat Bugzilla 2006-01-19 16:01:29 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2006-0140.html
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