概要

Important: libtiff security update

タイプ/重大度

Security Advisory: Important

トピック

Updated libtiff packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having
important 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.

説明

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

libtiff did not properly convert between signed and unsigned integer
values, leading to a buffer overflow. An attacker could use this flaw to
create a specially-crafted TIFF file that, when opened, would cause an
application linked against libtiff to crash or, possibly, execute arbitrary
code. (CVE-2012-2088)

Multiple integer overflow flaws, leading to heap-based buffer overflows,
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-2012-2113)

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

解決法

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/knowledge/articles/11258

影響を受ける製品

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support 6.3 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 6.3 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.3 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.3 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 from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.3 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.3 i386

修正

• BZ - 810551 - CVE-2012-2113 libtiff: integer overflow in tiff2pdf leading to heap-buffer overflow when reading a tiled tiff file
• BZ - 832864 - CVE-2012-2088 libtiff: Type conversion flaw leading to heap-buffer overflow

CVE

• CVE-2012-2088
• CVE-2012-2113

参考資料

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

Red Hat Enterprise Linux Server 5

SRPM
x86_64
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd
ia64
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd
i386
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd

Red Hat Enterprise Linux Workstation 5

SRPM
x86_64
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd
i386
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd

Red Hat Enterprise Linux Desktop 5

SRPM
x86_64
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd
i386
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd

Red Hat Enterprise Linux Server from RHUI 5

SRPM
x86_64
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd
i386
libtiff-debuginfo-3.8.2-15.el5_8.i386.rpm	SHA-256: 2fe975fe3df37211dd788a0c7d9771d0191e73636d6fa4957bff1bf2e8949bdd