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Bug 243261

Summary:	CVE-2007-2172 fib_semantics.c out of bounds access vulnerability
Product:	Red Hat Enterprise Linux 4	Reporter:	Marcel Holtmann <holtmann>
Component:	kernel	Assignee:	Jason Baron <jbaron>
Status:	CLOSED ERRATA	QA Contact:	Martin Jenner <mjenner>
Severity:	high	Docs Contact:
Priority:	medium
Version:	4.0	CC:	jbaron, jlieskov, knoel, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=important,source=redhat,reported=20070413,public=20070326
Fixed In Version:	RHSA-2007-0488	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-06-25 18:05:46 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:

Description Marcel Holtmann 2007-06-08 10:18:20 UTC

The Linux kernel is prone to an out-of-bounds-access vulnerability. This issue
occurs because the semantics for IPv4 Forwarding Information Base fail to
adequately bounds-check user-supplied data before accessing an array.

An attacker can exploit this issue to cause denial-of-service conditions.
Arbitrary code execution may also be possible, but this has not been confirmed.

Comment 1 Jason Baron 2007-06-12 15:51:32 UTC

committed in stream rhel‑4.5.z build 55.0.1

Comment 3 Joshua Giles 2007-06-21 22:21:54 UTC

Jason, 

Is there a reproducer for this one?

Comment 5 Red Hat Bugzilla 2007-06-25 18:05:46 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-2007-0488.html

Comment 6 Don Howard 2007-11-19 23:05:42 UTC

*** Bug 384541 has been marked as a duplicate of this bug. ***