Bug 171387

Summary:	CVE-2005-3275 NAT DoS
Product:	Red Hat Enterprise Linux 2.1	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:	2.1	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:	public=20050722,impact=important,source=cve
Fixed In Version:	RHSA-2006-0191	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-02-01 17:56:58 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:	143573

Description Mark J. Cox 2005-10-21 12:55:33 UTC

+++ This bug was initially created as a clone of Bug #171386 +++

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
EL2.1 which looks vulnerable to this issue.

Comment 4 Red Hat Bugzilla 2006-02-01 17:56:58 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-2006-0191.html