libpng png_handle_iCCP() NULL pointer dereference

Overview

The Portable Network Graphics library (libpng) contains a remotely exploitable vulnerability that could cause affected applications to crash.

Description

The Portable Network Graphics (PNG) image format is used as an alternative to other image formats such as the Graphics Interchange Format (GIF). The libpng reference library is available for application developers to support the PNG image format.

Under some circumstances, a null pointer may be dereferenced during a memory allocation in the png_handle_iCCP() function. As a result, a PNG file with particular characteristics could cause the affected application to crash. Similar errors are reported to exist in other locations within libpng.

Multiple applications support the PNG image format, including web browsers, email clients, and various graphic utilities. Because multiple products have used the libpng reference library to implement native PNG image processing, applications will be affected by this issue in different ways.

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Impact

An attacker could cause a vulnerable application to crash by supplying a specially crafted PNG image. Vulnerable applications that read images from network sources could be exploited remotely.

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Solution

Apply a patch from the vendor
Patches have been released to address this vulnerability. Please see the Systems Affected section of this document for more details.

---

Vendor Information

236656

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Apple Computer, Inc. __ Affected

Notified: July 16, 2004 Updated: June 01, 2005

Status

Affected

Vendor Statement

APPLE-SA-2004-09-09 Mac OS X 10.3.5

Mac OS X 10.3.5 is now available and delivers security enhancements
for the following components:

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.

Note: The libpng security fixes are also available separately for Mac
OS X 10.3.4 and Mac OS X 10.2.8 via Security Update 2004-08-09.

Mac OS X 10.3.5 may be obtained from the Software Update
pane in System Preferences, or Apple’s Software Downloads web site:
<http://www.apple.com/support/downloads/&gt;

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Debian Linux Affected

Notified: July 16, 2004 Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Gentoo Affected

Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Hewlett-Packard Company Affected

Notified: July 16, 2004 Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Mandriva, Inc. __ Affected

Notified: July 16, 2004 Updated: August 04, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

MandrakeSoft has published Mandrake Security Advisory MDKSA-2004:079 in response to this issue. Users are encouraged to review this advisory and apply the patches it refers to.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Mandriva, Inc. Affected

Notified: July 16, 2004 Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

MontaVista Software, Inc. Affected

Notified: July 16, 2004 Updated: August 04, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

OpenPKG Affected

Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Red Hat, Inc. Affected

Notified: July 16, 2004 Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

SUSE Linux Affected

Notified: July 16, 2004 Updated: August 04, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Slackware Affected

Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Sun Microsystems, Inc. Affected

Notified: July 16, 2004 Updated: August 04, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Trustix Secure Linux Affected

Updated: August 20, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

libpng.org __ Affected

Notified: July 16, 2004 Updated: August 04, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

This issue has been resolved in libpng version 1.2.6rc1 (release candidate 1). An older version of libpng containing the backported fixes, 1.0.16rc1, is also available.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Hitachi Not Affected

Notified: July 16, 2004 Updated: August 20, 2004

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Juniper Networks, Inc. __ Not Affected

Notified: July 16, 2004 Updated: July 23, 2004

Status

Not Affected

Vendor Statement

Juniper Networks products are not susceptible to this vulnerability

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

NEC Corporation __ Not Affected

Notified: July 16, 2004 Updated: August 03, 2004

Status

Not Affected

Vendor Statement

`sent on August 2, 2004

[Software Products]

• E-mail client software “WeMail”
  (shareware developped by NEC Communication Systems,Ltd.)

• is NOT vulnerable.
  It does not include any code originated from libPNG.

• We continue to try to investigate other products possibly affected
  by these vulnerabilities.
  `

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Berkeley Software Design, Inc. Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Cray Inc. Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Engarde Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

FreeBSD, Inc. Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Fujitsu Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

IBM Corporation Unknown

Notified: July 16, 2004 Updated: August 04, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

IBM eServer Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

IBM-zSeries Unknown

Notified: July 16, 2004 Updated: August 20, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Immunix Unknown

Notified: July 16, 2004 Updated: August 04, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Ingrian Networks, Inc. Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Microsoft Corporation Unknown

Notified: July 16, 2004 Updated: August 04, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

NETBSD Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Nokia Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Novell, Inc. Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Openwall GNU/*/Linux Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

SCO Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

SGI Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Sequent Computer Systems, Inc. Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Sony Corporation Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

TurboLinux Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Unisys Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

Wind River Systems, Inc. Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

eMC Corporation Unknown

Updated: July 23, 2004

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23236656 Feedback>).

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CVSS Metrics

Group	Score	Vector
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Temporal
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References

• <http://scary.beasts.org/security/CESA-2004-001.txt&gt;
• <http://www.libpng.org/pub/png/&gt;
• <http://libpng.sourceforge.net/&gt;

Acknowledgements

Thanks to Chris Evans for reporting this vulnerability.

This document was written by Chad Dougherty and Damon Morda.

Other Information

CVE IDs:	CVE-2004-0598
Severity Metric:	1.05 Date Public: