Synopsis

Important: libxml2 security update

Type/Severity

Security Advisory: Important

Topic

Updated libxml2 packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.6 Extended Update Support.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

Description

The libxml2 library is a development toolbox providing the implementation
of various XML standards.

A heap-based buffer overflow flaw was found in the way libxml2 decoded
entity references with long names. A remote attacker could provide a
specially-crafted XML file that, when opened in an application linked
against libxml2, would cause the application to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application. (CVE-2011-3919)

All users of libxml2 are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. The desktop must
be restarted (log out, then log back in) 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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 i386
• Red Hat Enterprise Linux Server - AUS 5.6 x86_64
• Red Hat Enterprise Linux Server - AUS 5.6 ia64
• Red Hat Enterprise Linux Server - AUS 5.6 i386
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.6 s390x
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.6 ppc

Fixes

• BZ - 771896 - CVE-2011-3919 libxml2: Heap-based buffer overflow when decoding an entity reference with a long name

CVEs

• CVE-2011-3919

References

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

Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6

SRPM
libxml2-2.6.26-2.1.2.8.el5_6.2.src.rpm	SHA-256: 95b34490721e026091c217a3b0f0f93b8775845470a31fc5d5eccbcc479a7b3e
x86_64
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: 8fac27c6d4a0d26a57b84452ba7f974c0d9e8b56e1f9d617f1810ba8079f3169
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 5e371188ba13839882aebc2011caa9412e67708f26f92898eb9de96f04498e32
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: e53e0de6da918e0b2a2194ba384da9ba96fa43a0609878b0714ffa65e3b44a52
libxml2-python-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: ac90443f1365cbacc084415cd8d292dabbc06fcfff9905773f2c226277a7cc6d
ia64
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-2.6.26-2.1.2.8.el5_6.2.ia64.rpm	SHA-256: 92dccf097af6a1aedc84b0397997c2364b8251335042d681f91dc28388b83765
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.ia64.rpm	SHA-256: b850ecace8c41ee1ea6d8affe4fa6f00c3c8a1115de208a2bf676adbd63abbfc
libxml2-python-2.6.26-2.1.2.8.el5_6.2.ia64.rpm	SHA-256: c6381c0c930b41163733620bd6430cc82b100291f0ffbd970bf3820bb2935dbb
i386
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 5e371188ba13839882aebc2011caa9412e67708f26f92898eb9de96f04498e32
libxml2-python-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: e4e8784ccd537b904b652c0df1d1b1d65f17c8bf0e31bcb216cf833923c61fa0

Red Hat Enterprise Linux Server - AUS 5.6

SRPM
libxml2-2.6.26-2.1.2.8.el5_6.2.src.rpm	SHA-256: 95b34490721e026091c217a3b0f0f93b8775845470a31fc5d5eccbcc479a7b3e
x86_64
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: 8fac27c6d4a0d26a57b84452ba7f974c0d9e8b56e1f9d617f1810ba8079f3169
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 5e371188ba13839882aebc2011caa9412e67708f26f92898eb9de96f04498e32
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: e53e0de6da918e0b2a2194ba384da9ba96fa43a0609878b0714ffa65e3b44a52
libxml2-python-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: ac90443f1365cbacc084415cd8d292dabbc06fcfff9905773f2c226277a7cc6d
ia64
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-2.6.26-2.1.2.8.el5_6.2.ia64.rpm	SHA-256: 92dccf097af6a1aedc84b0397997c2364b8251335042d681f91dc28388b83765
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.ia64.rpm	SHA-256: b850ecace8c41ee1ea6d8affe4fa6f00c3c8a1115de208a2bf676adbd63abbfc
libxml2-python-2.6.26-2.1.2.8.el5_6.2.ia64.rpm	SHA-256: c6381c0c930b41163733620bd6430cc82b100291f0ffbd970bf3820bb2935dbb
i386
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 5e371188ba13839882aebc2011caa9412e67708f26f92898eb9de96f04498e32
libxml2-python-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: e4e8784ccd537b904b652c0df1d1b1d65f17c8bf0e31bcb216cf833923c61fa0

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.6

SRPM
libxml2-2.6.26-2.1.2.8.el5_6.2.src.rpm	SHA-256: 95b34490721e026091c217a3b0f0f93b8775845470a31fc5d5eccbcc479a7b3e
s390x
libxml2-2.6.26-2.1.2.8.el5_6.2.s390.rpm	SHA-256: 669d003064280093cf6a6854087ac4d13b6e9b303cd5491a7421149f05c1652a
libxml2-2.6.26-2.1.2.8.el5_6.2.s390x.rpm	SHA-256: 9b03f965a8233dbc91e5027db65f532f91a72286eda215db3949516e56f94749
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.s390.rpm	SHA-256: 7338a35dbe2914eaff172930e5734779300bce110eebf55a6efaf90ae283b9ac
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.s390x.rpm	SHA-256: f9b92acf75553d2c006271ec5d6cb983d6c66e803f16009f80255d97630194fa
libxml2-python-2.6.26-2.1.2.8.el5_6.2.s390x.rpm	SHA-256: a6ae7fc45286bd3832a1a26a01187c9e365186aea8f6b67454c42df5c600f062

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.6

SRPM
libxml2-2.6.26-2.1.2.8.el5_6.2.src.rpm	SHA-256: 95b34490721e026091c217a3b0f0f93b8775845470a31fc5d5eccbcc479a7b3e
ppc
libxml2-2.6.26-2.1.2.8.el5_6.2.ppc.rpm	SHA-256: 1c4e4ca3c6bf5b50040794285b95cc6a3025f4c5b4c8ebd1811c3583c2c37786
libxml2-2.6.26-2.1.2.8.el5_6.2.ppc64.rpm	SHA-256: 8036800de085c15ba07169c479fdc5044ad1880f9c5fb7eaa395e974b80ac278
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.ppc.rpm	SHA-256: 78a61e467fa40a96c618b9829e7263fe92bb1eb57661bbd9b40a93722adab40c
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.ppc64.rpm	SHA-256: fe30c0e41264fe2ef1bb915f1a973d47d2cd30988773525a1cbc6ef550c51681
libxml2-python-2.6.26-2.1.2.8.el5_6.2.ppc.rpm	SHA-256: d29464eda83d17bc2cd40422571ab51194b25d94b9bc0226993aaab1deec7526

Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6

SRPM
libxml2-2.6.26-2.1.2.8.el5_6.2.src.rpm	SHA-256: 95b34490721e026091c217a3b0f0f93b8775845470a31fc5d5eccbcc479a7b3e
x86_64
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: 8fac27c6d4a0d26a57b84452ba7f974c0d9e8b56e1f9d617f1810ba8079f3169
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 5e371188ba13839882aebc2011caa9412e67708f26f92898eb9de96f04498e32
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: e53e0de6da918e0b2a2194ba384da9ba96fa43a0609878b0714ffa65e3b44a52
libxml2-python-2.6.26-2.1.2.8.el5_6.2.x86_64.rpm	SHA-256: ac90443f1365cbacc084415cd8d292dabbc06fcfff9905773f2c226277a7cc6d
i386
libxml2-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 58e3f9576858ad2785aaecd3a58ef37b3029a76ba2970492d11c7288af994132
libxml2-devel-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: 5e371188ba13839882aebc2011caa9412e67708f26f92898eb9de96f04498e32
libxml2-python-2.6.26-2.1.2.8.el5_6.2.i386.rpm	SHA-256: e4e8784ccd537b904b652c0df1d1b1d65f17c8bf0e31bcb216cf833923c61fa0