KPdf, KWord: Multiple overflows in included Xpdf code

Security Team Contact Address

Updated January 04, 2006

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200601-02 / kdegraphics, kpdf, koffice, kword
Release Date	January 04, 2006
Latest Revision	January 07, 2006: 03
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
kde-base/kdegraphics	< 3.4.3-r3	>= 3.4.3-r3	All supported architectures
kde-base/kpdf	< 3.4.3-r3	>= 3.4.3-r3	All supported architectures
app-office/koffice	< 1.4.2-r6	>= 1.4.2-r6	All supported architectures
app-office/kword	< 1.4.2-r6	>= 1.4.2-r6	All supported architectures

Related bugreports: #114429, #115851

Synopsis

KPdf and KWord both include vulnerable Xpdf code to handle PDF files, making them vulnerable to the execution of arbitrary code.

2. Impact Information

Background

KPdf is a KDE-based PDF viewer included in the kdegraphics package. KWord is a KDE-based word processor also included in the koffice package.

Description

KPdf and KWord both include Xpdf code to handle PDF files. This Xpdf code is vulnerable to several heap overflows (GLSA 200512-08) as well as several buffer and integer overflows discovered by Chris Evans (CESA-2005-003).

Impact

An attacker could entice a user to open a specially crafted PDF file with Kpdf or KWord, potentially resulting in the execution of arbitrary code with the rights of the user running the affected application.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All kdegraphics users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.4.3-r3"

All Kpdf users should upgrade to the latest version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.4.3-r3"

All KOffice users should upgrade to the latest version:

Code Listing 3.3: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/koffice-1.4.2-r6"

All KWord users should upgrade to the latest version:

Code Listing 3.4: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/kword-1.4.2-r6"

4. References