Bug 171386

Summary:	CVE-2005-3275 NAT DoS
Product:	Red Hat Enterprise Linux 3	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Don Howard <dhoward>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	3.0	CC:	davem, lwang, petrides, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	public=20050722,impact=important,source=cve
Fixed In Version:	RHSA-2006-0140	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-01-19 16:01:29 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	168424

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