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Bug 186058

Summary: CVE-2006-1242 Linux zero IP ID vulnerability?
Product: Red Hat Enterprise Linux 3 Reporter: Marcel Holtmann <holtmann>
Component: kernelAssignee: Thomas Graf <tgraf>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: low Docs Contact:
Priority: medium    
Version: 3.0CC: 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:
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