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Bug 120028

Summary:	CAN-2004-0109 kernel iso9660 buffer overflow
Product:	Red Hat Enterprise Linux 3	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Ernie Petrides <petrides>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	petrides, riel, tburke
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-04-22 18:52:26 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:	119235

Description Mark J. Cox 2004-04-05 12:04:38 UTC

In Feburary, iDefense notified us of a flaw in the iso9660 filesystem
component of the Linux kernel.  

The Linux kernel performs no length checking on symbolic links stored
on an ISO9660 filesystem, allowing a malformed CD to perform an
arbitrary length overflow in kernel memory. 

In order to exploit this vulnerability, an attacker must be able to
mount a maliciously constructed filesystem (for example by being at
the machine in order to insert a cdrom)

This issue is embargoed until 1400UTC on April 14th 2004.

Comment 1 Ernie Petrides 2004-04-14 22:36:07 UTC

A fix for this problem has just now been committed to the
Taroon U2 kernel patch pool in kernel version 2.4.21-14.EL.

Comment 2 Mark J. Cox 2004-04-15 20:28:47 UTC

Removing embargo

Comment 3 Mark J. Cox 2004-04-21 18:47:09 UTC

RHSA-2003:183 is in progress and currently in QA.

Comment 4 Mark J. Cox 2004-04-22 18:52:26 UTC

An errata 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-2004-183.html