Full Disclosure mailing list archives
[ GLSA 200612-05 ] KOffice shared libraries: Heap corruption
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Sun, 10 Dec 2006 16:03:12 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200612-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: KOffice shared libraries: Heap corruption Date: December 10, 2006 Bugs: #155914 ID: 200612-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== An integer overflow in koffice-libs allows for a Denial of Service and possibly the execution of arbitrary code when viewing malicious PowerPoint files. Background ========== KOffice is an integrated office suite for KDE. koffice-libs is a package containing shared librares used by KOffice programs. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-office/koffice-libs < 1.5.0 >= 1.5.0 Description =========== Kees Cook of Ubuntu discovered that 'KLaola::readBigBlockDepot()' in klaola.cc fills 'num_of_bbd_blocks' while reading a .ppt (PowerPoint) file without proper sanitizing, resulting in an integer overflow subsequently overwriting the heap with parts of the file being read. Impact ====== By enticing a user to open a specially crafted PowerPoint file, an attacker could crash the application and possibly execute arbitrary code with the rights of the user running KOffice. Workaround ========== There is no known workaround at this time. Resolution ========== All koffice-libs users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-office/koffice-libs-1.5.0" References ========== [ 1 ] CVE-2006-6120 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6120 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200612-05.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 2006 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
Attachment:
_bin
Description:
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- [ GLSA 200612-05 ] KOffice shared libraries: Heap corruption Sune Kloppenborg Jeppesen (Dec 10)