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Gentoo alert 200710-20 (pdfkit)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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 (Log in to post comments)
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