RHSA-2007:1030 - Security Advisory

Topic

Updated xpdf packages that fix several security issues are now available
for Red Hat Enterprise Linux 3.

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.

Alin Rad Pop discovered several flaws in the handling of PDF files. An
attacker could create a malicious PDF file that would cause Xpdf to crash,
or potentially execute arbitrary code when opened.
(CVE-2007-4352, CVE-2007-5392, CVE-2007-5393)

A flaw was found in the t1lib library, used in the handling of Type 1
fonts. An attacker could create a malicious file that would cause Xpdf to
crash, or potentially execute arbitrary code when opened. (CVE-2007-4033)

Users are advised to upgrade to these updated packages, which contain
backported patches to resolve 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/FAQ_58_10188

Affected Products

• 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 Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• 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 Power, big endian 3 ppc

Fixes

• BZ - 345101 - CVE-2007-4352 xpdf memory corruption in DCTStream::readProgressiveDataUnit()
• BZ - 345111 - CVE-2007-5392 xpdf buffer overflow in DCTStream::reset()
• BZ - 345121 - CVE-2007-5393 xpdf buffer overflow in CCITTFaxStream::lookChar()
• BZ - 352271 - CVE-2007-4033 t1lib font filename string overflow

CVEs

• CVE-2007-5393
• CVE-2007-5392
• CVE-2007-4352
• CVE-2007-4033

References

• http://www.redhat.com/security/updates/classification/#important