full-disclosure - [OpenPKG-SA-2007.013] OpenPKG Security Advisory (png)

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Date: Thu, 17 May 2007 22:32:02 +0200
From: OpenPKG GmbH <openpkg-noreply@...npkg.com>
To: full-disclosure@...ts.grok.org.uk
Subject: [OpenPKG-SA-2007.013] OpenPKG Security Advisory
	(png)

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Hash: SHA1

____________________________________________________________________________

Publisher Name:          OpenPKG GmbH
Publisher Home:          http://openpkg.com/

Advisory Id (public):    OpenPKG-SA-2007.013
Advisory Type:           OpenPKG Security Advisory (SA)
Advisory Directory:      http://openpkg.com/go/OpenPKG-SA
Advisory Document:       http://openpkg.com/go/OpenPKG-SA-2007.013
Advisory Published:      2007-05-17 22:31 UTC

Issue Id (internal):     OpenPKG-SI-20070517.02
Issue First Created:     2007-05-17
Issue Last Modified:     2007-05-17
Issue Revision:          03
____________________________________________________________________________

Subject Name:            png
Subject Summary:         Portable Network Graphics (PNG) Image Format
                         Library
Subject Home:            http://www.libpng.org/pub/png/libpng.html
Subject Versions:        * <= 1.2.16

Vulnerability Id:        CVE-2007-2445
Vulnerability Scope:     global (not OpenPKG specific)

Attack Feasibility:      run-time
Attack Vector:           remote network
Attack Impact:           denial of service

Description:
    As confirmed by the vendor, a Denial of Service (DoS) vulnerability
    exists in the PNG [0] image format library libpng [1]. The bug is
    a NULL-pointer-dereference vulnerability involving palette images
    with a malformed "tRNS" PNG chunk, i.e., one with a bad CRC value.
    This bug can, at a minimum, cause crashes in applications simply by
    displaying a malformed image.

References:
    [0] http://www.libpng.org/pub/png/
    [1] http://www.libpng.org/pub/png/libpng.html
    [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2445
____________________________________________________________________________

Primary Package Name:    png
Primary Package Home:    http://openpkg.org/go/package/png

Corrected Distribution:  Corrected Branch: Corrected Package:
OpenPKG Enterprise       E1.0-SOLID        ghostscript-8.54-E1.0.1
OpenPKG Enterprise       E1.0-SOLID        png-1.2.12-E1.0.2
OpenPKG Community        CURRENT           ghostscript-8.57-20070516
OpenPKG Community        CURRENT           png-1.2.18-20070516
____________________________________________________________________________

For security reasons, this document was digitally signed with the
OpenPGP public key of the OpenPKG GmbH (public key id 61B7AE34)
which you can download from http://openpkg.com/openpkg.com.pgp
or retrieve from the OpenPGP keyserver at hkp://pgp.openpkg.org/.
Follow the instructions at http://openpkg.com/security/signatures/
for more details on how to verify the integrity of this document.
____________________________________________________________________________

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Comment: OpenPKG GmbH <http://openpkg.com/>

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