A Divendres 09 Novembre 2007, Brad Hards va escriure: > FYI. Its now public.
Already patched on git, and even with additional fixes ;-) Albert > ---------- Forwarded Message ---------- > > Subject: Secunia Research: Xpdf "Stream.cc" Multiple Vulnerabilities > Date: Thursday 08 November 2007 02:42 > From: Secunia Research <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > > ====================================================================== > > Secunia Research 07/11/2007 > > - Xpdf "Stream.cc" Multiple Vulnerabilities - > > ====================================================================== > Table of Contents > > Affected Software....................................................1 > Severity.............................................................2 > Vendor's Description of Software.....................................3 > Description of Vulnerability.........................................4 > Solution.............................................................5 > Time Table...........................................................6 > Credits..............................................................7 > References...........................................................8 > About Secunia........................................................9 > Verification........................................................10 > > ====================================================================== > 1) Affected Software > > * Xpdf 3.02 with xpdf-3.02pl1.patch. > > NOTE: Other versions may also be affected. > > ====================================================================== > 2) Severity > > Rating: Highly critical > Impact: System access > Where: Remote > > ====================================================================== > 3) Vendor's Description of Software > > "Xpdf is an open source viewer for Portable Document Format (PDF) > files. (These are also sometimes also called 'Acrobat' files, from the > name of Adobe's PDF software.) The Xpdf project also includes a PDF > text extractor, PDF-to-PostScript converter, and various other > utilities.". > > Product Link: > http://www.foolabs.com/xpdf/ > > ====================================================================== > 4) Description of Vulnerabilities > > Secunia Research has discovered some vulnerabilities in Xpdf, which can > be exploited by malicious people to compromise a user's system. > > 1) An array indexing error within the > "DCTStream::readProgressiveDataUnit()" method in xpdf/Stream.cc can be > exploited to corrupt memory via a specially crafted PDF file. > > 2) An integer overflow error within the "DCTStream::reset()" method in > xpdf/Stream.cc can be exploited to cause a heap-based buffer overflow > via a specially crafted PDF file. > > 3) A boundary error within the "CCITTFaxStream::lookChar()" method in > xpdf/Stream.cc can be exploited to cause a heap-based buffer overflow > by tricking a user into opening a PDF file containing a specially > crafted "CCITTFaxDecode" filter. > > Successful exploitation may allow execution of arbitrary code. > > ====================================================================== > 5) Solution > > Do not open untrusted PDF files. > > The vendor is reportedly working on a patch. > > ====================================================================== > 6) Time Table > > 17/10/2007 - Vendor notified. > 22/10/2007 - vendor-sec notified. > 19/10/2007 - Vendor response. > 07/11/2007 - Public disclosure. > > ====================================================================== > 7) Credits > > Discovered by Alin Rad Pop, Secunia Research. > > ====================================================================== > 8) References > > The Common Vulnerabilities and Exposures (CVE) project has assigned the > following CVE identifiers: > * CVE-2007-4352 ("DCTStream::readProgressiveDataUnit()") > * CVE-2007-5392 ("DCTStream::reset()") > * CVE-2007-5393 ("CCITTFaxStream::lookChar()") > > ====================================================================== > 9) About Secunia > > Secunia offers vulnerability management solutions to corporate > customers with verified and reliable vulnerability intelligence > relevant to their specific system configuration: > > http://corporate.secunia.com/ > > Secunia also provides a publicly accessible and comprehensive advisory > database as a service to the security community and private > individuals, who are interested in or concerned about IT-security. > > http://secunia.com/ > > Secunia believes that it is important to support the community and to > do active vulnerability research in order to aid improving the > security and reliability of software in general: > > http://corporate.secunia.com/secunia_research/33/ > > Secunia regularly hires new skilled team members. Check the URL below > to see currently vacant positions: > > http://secunia.com/secunia_vacancies/ > > Secunia offers a FREE mailing list called Secunia Security Advisories: > > http://secunia.com/secunia_security_advisories/ > > ====================================================================== > 10) Verification > > Please verify this advisory by visiting the Secunia website: > http://secunia.com/secunia_research/2007-88/ > > Complete list of vulnerability reports published by Secunia Research: > http://secunia.com/secunia_research/ > > ====================================================================== > > ------------------------------------------------------- _______________________________________________ poppler mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/poppler
