RHSA-2009:0431

Problem Description:

Updated kdegraphics packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
RHEL Optional Productivity Applications (v. 5 server) - i386, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

The kdegraphics packages contain applications for the K Desktop
Environment, including KPDF, a viewer for Portable Document Format (PDF)
files.

Multiple integer overflow flaws were found in KPDF's JBIG2 decoder. An
attacker could create a malicious PDF file that would cause KPDF to crash
or, potentially, execute arbitrary code when opened. (CVE-2009-0147,
CVE-2009-1179)

Multiple buffer overflow flaws were found in KPDF's JBIG2 decoder. An
attacker could create a malicious PDF file that would cause KPDF to crash
or, potentially, execute arbitrary code when opened. (CVE-2009-0146,
CVE-2009-1182)

Multiple flaws were found in KPDF's JBIG2 decoder that could lead to the
freeing of arbitrary memory. An attacker could create a malicious PDF file
that would cause KPDF to crash or, potentially, execute arbitrary code when
opened. (CVE-2009-0166, CVE-2009-1180)

Multiple input validation flaws were found in KPDF's JBIG2 decoder. An
attacker could create a malicious PDF file that would cause KPDF to crash
or, potentially, execute arbitrary code when opened. (CVE-2009-0800)

Multiple denial of service flaws were found in KPDF's JBIG2 decoder. An
attacker could create a malicious PDF that would cause KPDF to crash when
opened. (CVE-2009-0799, CVE-2009-1181, CVE-2009-1183)

Red Hat would like to thank Braden Thomas and Drew Yao of the Apple Product
Security team, and Will Dormann of the CERT/CC for responsibly reporting
these flaws.

Users are advised to upgrade to these updated packages, which contain
backported patches to resolve these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

490612 - CVE-2009-0146 xpdf: Multiple buffer overflows in JBIG2 decoder (setBitmap, readSymbolDictSeg)
490614 - CVE-2009-0147 xpdf: Multiple integer overflows in JBIG2 decoder
490625 - CVE-2009-0166 xpdf: Freeing of potentially uninitialized memory in JBIG2 decoder
491864 - Multiple PDF flaws
495886 - CVE-2009-0799 PDF JBIG2 decoder OOB read
495887 - CVE-2009-0800 PDF JBIG2 multiple input validation flaws
495889 - CVE-2009-1179 PDF JBIG2 integer overflow
495892 - CVE-2009-1180 PDF JBIG2 invalid free()
495894 - CVE-2009-1181 PDF JBIG2 NULL dereference
495896 - CVE-2009-1182 PDF JBIG2 MMR decoder buffer overflows
495899 - CVE-2009-1183 PDF JBIG2 MMR infinite loop DoS