RHSA-2014:0222 - Security Advisory

Topic

Updated libtiff packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having Moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

The libtiff packages contain a library of functions for manipulating Tagged
Image File Format (TIFF) files.

A heap-based buffer overflow and a use-after-free flaw were found in the
tiff2pdf tool. An attacker could use these flaws to create a specially
crafted TIFF file that would cause tiff2pdf to crash or, possibly, execute
arbitrary code. (CVE-2013-1960, CVE-2013-4232)

Multiple buffer overflow flaws were found in the gif2tiff tool. An attacker
could use these flaws to create a specially crafted GIF file that could
cause gif2tiff to crash or, possibly, execute arbitrary code.
(CVE-2013-4231, CVE-2013-4243, CVE-2013-4244)

A flaw was found in the way libtiff handled OJPEG-encoded TIFF images. An
attacker could use this flaw to create a specially crafted TIFF file that
would cause an application using libtiff to crash. (CVE-2010-2596)

Multiple buffer overflow flaws were found in the tiff2pdf tool. An attacker
could use these flaws to create a specially crafted TIFF file that would
cause tiff2pdf to crash. (CVE-2013-1961)

Red Hat would like to thank Emmanuel Bouillon of NCI Agency for reporting
CVE-2013-1960 and CVE-2013-1961. The CVE-2013-4243 issue was discovered by
Murray McAllister of the Red Hat Security Response Team, and the
CVE-2013-4244 issue was discovered by Huzaifa Sidhpurwala of the Red Hat
Security Response Team.

All libtiff users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. All running
applications linked against libtiff must be restarted for this update to
take effect.

Solution

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

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.5 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.5 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.5 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.5 i386
• Red Hat Enterprise Linux EUS Compute Node 6.5 x86_64
• Red Hat Enterprise Linux Server - AUS 6.5 x86_64
• Red Hat Enterprise Linux Server - TUS 6.5 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 610759 - CVE-2010-2596 libtiff: assertion failure on downsampled OJPEG file
• BZ - 952131 - CVE-2013-1961 libtiff (tiff2pdf): Stack-based buffer overflow with malformed image-length and resolution
• BZ - 952158 - CVE-2013-1960 libtiff (tiff2pdf): Heap-based buffer overflow in t2_process_jpeg_strip()
• BZ - 995965 - CVE-2013-4231 libtiff (gif2tiff): GIF LZW decoder missing datasize value check
• BZ - 995975 - CVE-2013-4232 libtiff (tiff2pdf): use-after-free in t2p_readwrite_pdf_image()
• BZ - 996052 - CVE-2013-4243 libtiff (gif2tiff): possible heap-based buffer overflow in readgifimage()
• BZ - 996468 - CVE-2013-4244 libtiff (gif2tiff): OOB Write in LZW decompressor

CVEs

• CVE-2013-4232
• CVE-2013-4231
• CVE-2013-4244
• CVE-2013-1961
• CVE-2013-1960
• CVE-2013-4243
• CVE-2010-2596

References

• https://access.redhat.com/security/updates/classification/#moderate