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

From: OpenPKG GmbH <openpkg-noreply_at_nospam>
Date: Thu May 17 2007 - 20:32:02 GMT
To: full-disclosure@lists.grok.org.uk


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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
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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
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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
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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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