GLSA 200710-20: PDFKit, ImageKits: Buffer overflow
| Severity: | normal |
| Title: | PDFKit, ImageKits: Buffer overflow |
| Date: | 10/18/2007 |
| Bugs: | |
| 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 | Architecture(s) |
|---|---|---|---|
| gnustep-libs/pdfkit | <= 0.9_pre062906 | All supported architectures | |
| gnustep-libs/imagekits | <= 0.6 | All 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
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
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 https://bugs.gentoo.org.
License
Copyright 2010 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.