Synopsis

Important: xpdf security update

Type/Severity

Security Advisory: Important

Topic

An updated xpdf package that fixes multiple security issues is now
available for Red Hat Enterprise Linux 3 and 4.

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

Description

Xpdf is an X Window System based viewer for Portable Document Format (PDF)
files.

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

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

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

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

Multiple denial of service flaws were found in Xpdf's JBIG2 decoder. An
attacker could create a malicious PDF that would cause Xpdf 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 this updated package, which contains
backported patches to correct these issues.

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

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.7 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.7 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian 3 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.7 ppc

Fixes

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

CVEs

• CVE-2009-0147
• CVE-2009-0146
• CVE-2009-0800
• CVE-2009-0166
• CVE-2009-1180
• CVE-2009-1181
• CVE-2009-1182
• CVE-2009-1183
• CVE-2009-1179
• CVE-2009-0799
• CVE-2009-0195

References