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[ GLSA 200710-20 ] PDFKit, ImageKits: Buffer overflow
From: Raphael Marichez <falco () gentoo org>
Date: Fri, 19 Oct 2007 00:46:04 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200710-20 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: PDFKit, ImageKits: Buffer overflow Date: October 18, 2007 Bugs: #188185 ID: 200710-20 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== PDFKit and ImageKits are vulnerable to an integer overflow and a stack overflow allowing for the user-assisted execution of arbitrary code. Background ========== PDFKit is a framework for rendering of PDF content in GNUstep applications. ImageKits is a collection of frameworks to support imaging in GNUstep applications. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 gnustep-libs/pdfkit <= 0.9_pre062906 Vulnerable! 2 gnustep-libs/imagekits <= 0.6 Vulnerable! ------------------------------------------------------------------- NOTE: Certain packages are still vulnerable. Users should migrate to another package if one is available or wait for the existing packages to be marked stable by their architecture maintainers. ------------------------------------------------------------------- 2 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== Maurycy Prodeus discovered an integer overflow vulnerability possibly leading to a stack-based buffer overflow in the XPDF code which PDFKit is based on. ImageKits also contains a copy of PDFKit. Impact ====== By enticing a user to view a specially crafted PDF file with a viewer based on ImageKits or PDFKit such as Gentoo's ViewPDF, a remote attacker could cause an overflow, potentially resulting in the execution of arbitrary code with the privileges of the user running the application. Workaround ========== There is no known workaround at this time. Resolution ========== PDFKit and ImageKits are not maintained upstream, so the packages were masked in Portage. We recommend that users unmerge PDFKit and ImageKits: # emerge --unmerge gnustep-libs/pdfkit # emerge --unmerge gnustep-libs/imagekits As an alternative, users should upgrade their systems to use PopplerKit instead of PDFKit and Vindaloo instead of ViewPDF. References ========== [ 1 ] CVE-2007-3387 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3387 [ 2 ] GLSA 200709-12 http://www.gentoo.org/security/en/glsa/glsa-200709-12.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-20.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security () gentoo org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5
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- [ GLSA 200710-20 ] PDFKit, ImageKits: Buffer overflow Raphael Marichez (Oct 19)