KPdf: Heap based overflow

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200602-05 / kdegraphics, kpdf
Release Date	February 12, 2006
Latest Revision	February 12, 2006: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
kde-base/kdegraphics	< 3.4.3-r4	>= 3.4.3-r4	All supported architectures
kde-base/kpdf	< 3.4.3-r4	>= 3.4.3-r4	All supported architectures

Related bugreports: #121375

Synopsis

KPdf includes vulnerable Xpdf code to handle PDF files, making it vulnerable to the execution of arbitrary code.

2. Impact Information

Background

KPdf is a KDE-based PDF viewer included in the kdegraphics package.

Description

KPdf includes Xpdf code to handle PDF files. Dirk Mueller discovered that the Xpdf code is vulnerable a heap based overflow in the splash rasterizer engine.

Impact

An attacker could entice a user to open a specially crafted PDF file with Kpdf, 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-r4"

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-r4"

4. References

Page updated February 12, 2006

Summary: This is a Gentoo Linux Security Advisory

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