GLSA 200710-08: KOffice, KWord, KPDF, KDE Graphics Libraries: Stack-based buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	KOffice, KWord, KPDF, KDE Graphics Libraries: Stack-based buffer overflow
Date:	10/09/2007
Bugs:	#187139
ID:	200710-08

Synopsis

KPDF includes code from xpdf that is vulnerable to a stack-based buffer overflow.

Background

KOffice is an integrated office suite for KDE. KWord is the KOffice word processor. KPDF is a KDE-based PDF viewer included in the kdegraphics package.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-office/koffice	< 1.6.3-r1	>= 1.6.3-r1	All supported architectures
app-office/kword	< 1.6.3-r1	>= 1.6.3-r1	All supported architectures
kde-base/kdegraphics	< 3.5.7-r1	>= 3.5.7-r1	All supported architectures
kde-base/kpdf	< 3.5.7-r1	>= 3.5.7-r1	All supported architectures

Description

KPDF includes code from xpdf that is vulnerable to an integer overflow in the StreamPredictor::StreamPredictor() function.

Impact

A remote attacker could entice a user to open a specially crafted PDF file in KWord or KPDF that would exploit the integer overflow to cause a stack-based buffer overflow in the StreamPredictor::getNextLine() function, possibly 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

All KOffice users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/koffice-1.6.3-r1"

All KWord users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/kword-1.6.3-r1"

All KDE Graphics Libraries users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.5.7-r1"

All KPDF users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.5.7-r1"

References

CVE-2007-3387

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-08.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 https://bugs.gentoo.org.