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             AUSCERT External Security Bulletin Redistribution

                   ESB-2004.0497 -- APPLE-SA-2004-08-09
                        Security Update 2004-08-09
                              10 August 2004

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                libpng
Publisher:              Apple
Operating System:       Mac OS X Server v10.2.8
                        Mac OS X v10.2.8
                        Mac OS X Server v10.3.4
                        Mac OS X v10.3.4
Impact:                 Execute Arbitrary Code/Commands
                        Denial of Service
Access:                 Remote/Unauthenticated
CVE Names:              CAN-2002-1363 CAN-2004-0421 CAN-2004-0597
                        CAN-2004-0598 CAN-2004-0599

Ref:                    ESB-2004.0490
                        ESB-2004.0489
                        ESB-2004.0482

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APPLE-SA-2004-09-09 Security Update 2004-08-09

Security Update 2004-08-09 is now available and delivers security
enhancements for the following system versions:
*  Mac OS X v10.3.4 "Panther"
*  Mac OS X Server v10.3.4 "Panther"
*  Mac OS X v10.2.8 "Jaguar"
*  Mac OS X Server v10.2.8 "Jaguar"

The following components are updated:

Component:  libpng (Portable Network Graphics)
CVE-IDs:    CAN-2002-1363, CAN-2004-0421, CAN-2004-0597,
CAN-2004-0598, CAN-2004-0599

Impact:  Malicious png images can cause application crashes and could
execute arbitrary code

Description:  A number of buffer overflows, null pointer dereferences
and integer overflows have been discovered in the reference library
for reading and writing PNG images. These vulnerabilities have been
corrected in libpng which is used by the CoreGraphics and AppKit
frameworks in Mac OS X.  After installing this update, applications
that use the PNG image format via these frameworks will be protected
against these flaws.

================================================

Security Update 2004-08-09 may be obtained from the Software Update
pane in System Preferences, or Apple's Software Downloads web site:

For Mac OS X v10.3.4 "Panther" and Mac OS X Server v10.3.4
==========================================================
http://www.apple.com/support/downloads/
Click on: Security Update 2004-08-09 (10.3.4)
The download file is named: "SecUpd2004-08-09Pan.dmg"
Its SHA-1 digest is:  f65ee21e4ca2990aafbb3e5a34469107de2eefb8

For Mac OS X v10.2.8 "Jaguar" and Mac OS X Server v10.2.8
=========================================================
http://www.apple.com/support/downloads/
Click on: Security Update 2004-08-09 (10.2.8)
The download file is named: "SecUpd2004-08-09Jag.dmg"
Its SHA-1 digest is:  6a7edb319c321320fd756e910a6cf0ce1537c1aa

Information will also be posted to the Apple Product Security
web site:
http://www.apple.com/support/security/security_updates.html

This message is signed with Apple's Product Security PGP key,
and details are available at:
http://www.apple.com/support/security/security_pgp.html

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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===========================================================================

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