libpng integer overflow in image height processing

Overview

The Portable Network Graphics library (libpng) contains a remotely exploitable vulnerability which 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.

An integer overflow error exists in the handling of PNG image height within the png_read_png() function. As a result, a PNG image with excessive height may cause an integer overflow on a memory allocation and could cause the affected application to crash.

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, multiple 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.

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Vendor Information

160448

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Apple Computer 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%23160448 Feedback>).

MontaVista Software 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%23160448 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%23160448 Feedback>).

IBM __ Not Affected

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

Status

Not Affected

Vendor Statement

The AIX Operating System is not vulnerable to the issues discussed in CERT Vulnerability Notes VU#817368, VU#236656, VU#477512, VU#160448 and VU#286464.

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%23160448 Feedback>).

Juniper Networks __ 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%23160448 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%23160448 Feedback>).

BSDI 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%23160448 Feedback>).

Conectiva 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%23160448 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%23160448 Feedback>).

Debian 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%23160448 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%23160448 Feedback>).

FreeBSD 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%23160448 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%23160448 Feedback>).

Hewlett-Packard Company 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%23160448 Feedback>).

Hitachi 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%23160448 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%23160448 Feedback>).

IBM-zSeries 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%23160448 Feedback>).

IMmunix 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%23160448 Feedback>).

Ingrian Networks 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%23160448 Feedback>).

MandrakeSoft 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%23160448 Feedback>).

Microsoft 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%23160448 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%23160448 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%23160448 Feedback>).

Novell 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%23160448 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%23160448 Feedback>).

Red Hat 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%23160448 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%23160448 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%23160448 Feedback>).

Sequent 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%23160448 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%23160448 Feedback>).

SuSE 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%23160448 Feedback>).

Sun Microsystems 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%23160448 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%23160448 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%23160448 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%23160448 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%23160448 Feedback>).

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CVSS Metrics

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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-2004-0599
Severity Metric:	0.97 Date Public: