Bug 186058

Summary:	CVE-2006-1242 Linux zero IP ID vulnerability?
Product:	Red Hat Enterprise Linux 3	Reporter:	Marcel Holtmann <holtmann>
Component:	kernel	Assignee:	Thomas Graf <tgraf>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	low	Docs Contact:
Priority:	medium
Version:	3.0	CC:	davem, lwang, petrides, rkhan, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=low,source=bugtraq,reported=20060314,public=20060314
Fixed In Version:	RHSA-2006-0437	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-07-20 13:58:53 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:	181405

Description Marcel Holtmann 2006-03-21 13:14:41 UTC

+++ This bug was initially created as a clone of Bug #186057 +++

Interesting behaviour of some Linux kernels that may be exploited by a remote
attacker to abuse the ID field of IP packets, effectively bypassing the zero IP
ID in DF packets countermeasure implemented since 2.4.8 (IIRC).

http://www.securityfocus.com/archive/1/427622/100/0/threaded

Comment 2 Ernie Petrides 2006-03-28 01:23:56 UTC

A fix for this problem has just been committed to the RHEL3 U8
patch pool this evening (in kernel version 2.4.21-40.5.EL).

Comment 3 Ernie Petrides 2006-04-28 21:49:52 UTC

Adding a couple dozen bugs to CanFix list so I can complete the stupid advisory.

Comment 6 Red Hat Bugzilla 2006-07-20 13:58:53 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-2006-0437.html