GLSA 200711-22: Poppler, KDE: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	Poppler, KDE: User-assisted execution of arbitrary code
Date:	11/18/2007
Bugs:	#196735, #198409
ID:	200711-22

Synopsis

Poppler and various KDE components are vulnerable to multiple memory management issues possibly resulting in the execution of arbitrary code.

Background

Poppler is a cross-platform PDF rendering library originally based on Xpdf. 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-text/poppler	< 0.6.1-r1	>= 0.6.1-r1	All supported architectures
kde-base/kpdf	< 3.5.8-r1	>= 3.5.7-r3	All supported architectures
kde-base/kdegraphics	< 3.5.8-r1	>= 3.5.7-r3	All supported architectures
app-office/kword	< 1.6.3-r2	>= 1.6.3-r2	All supported architectures
app-office/koffice	< 1.6.3-r2	>= 1.6.3-r2	All supported architectures

Description

Alin Rad Pop (Secunia Research) discovered several vulnerabilities in the "Stream.cc" file of Xpdf: An integer overflow in the DCTStream::reset() method and a boundary error in the CCITTFaxStream::lookChar() method, both leading to heap-based buffer overflows (CVE-2007-5392, CVE-2007-5393). He also discovered a boundary checking error in the DCTStream::readProgressiveDataUnit() method causing memory corruption (CVE-2007-4352). Note: Gentoo's version of Xpdf is patched to use the Poppler library, so the update to Poppler will also fix Xpdf.

Impact

By enticing a user to view or process a specially crafted PDF file with KWord or KPDF or a Poppler-based program such as Gentoo's viewers Xpdf, ePDFView, and Evince or the CUPS printing system, 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

All Poppler users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/poppler-0.6.1-r1"

All KPDF users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.5.7-r3"

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


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.5.7-r3"

All KWord users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/kword-1.6.3-r2"

All KOffice users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-office/koffice-1.6.3-r2"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200711-22.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.