An update for libxml2 is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from

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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: libxml2 security update
Advisory ID:       RHSA-2020:1190-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:1190
Issue date:        2020-03-31
CVE Names:         CVE-2015-8035 CVE-2016-5131 CVE-2017-15412 
                   CVE-2017-18258 CVE-2018-14404 CVE-2018-14567 
====================================================================
1. Summary:

An update for libxml2 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

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

Security Fix(es):

* libxml2: Use after free triggered by XPointer paths beginning with
range-to (CVE-2016-5131)

* libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate()
function in xpath.c (CVE-2017-15412)

* libxml2: DoS caused by incorrect error detection during XZ decompression
(CVE-2015-8035)

* libxml2: NULL pointer dereference in xmlXPathCompOpEval() function in
xpath.c (CVE-2018-14404)

* libxml2: Unrestricted memory usage in xz_head() function in xzlib.c
(CVE-2017-18258)

* libxml2: Infinite loop caused by incorrect error detection during LZMA
decompression (CVE-2018-14567)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.8 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

The desktop must be restarted (log out, then log back in) for this update
to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1277146 - CVE-2015-8035 libxml2: DoS caused by incorrect error detection during XZ decompression
1358641 - CVE-2016-5131 libxml2: Use after free triggered by XPointer paths beginning with range-to
1523128 - CVE-2017-15412 libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c
1566749 - CVE-2017-18258 libxml2: Unrestricted memory usage in xz_head() function in xzlib.c
1595985 - CVE-2018-14404 libxml2: NULL pointer dereference in xmlXPathCompOpEval() function in xpath.c
1619875 - CVE-2018-14567 libxml2: Infinite loop caused by incorrect error detection during LZMA decompression

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
libxml2-2.9.1-6.el7.4.src.rpm

x86_64:
libxml2-2.9.1-6.el7.4.i686.rpm
libxml2-2.9.1-6.el7.4.x86_64.rpm
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-python-2.9.1-6.el7.4.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-devel-2.9.1-6.el7.4.i686.rpm
libxml2-devel-2.9.1-6.el7.4.x86_64.rpm
libxml2-static-2.9.1-6.el7.4.i686.rpm
libxml2-static-2.9.1-6.el7.4.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
libxml2-2.9.1-6.el7.4.src.rpm

x86_64:
libxml2-2.9.1-6.el7.4.i686.rpm
libxml2-2.9.1-6.el7.4.x86_64.rpm
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-python-2.9.1-6.el7.4.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-devel-2.9.1-6.el7.4.i686.rpm
libxml2-devel-2.9.1-6.el7.4.x86_64.rpm
libxml2-static-2.9.1-6.el7.4.i686.rpm
libxml2-static-2.9.1-6.el7.4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
libxml2-2.9.1-6.el7.4.src.rpm

ppc64:
libxml2-2.9.1-6.el7.4.ppc.rpm
libxml2-2.9.1-6.el7.4.ppc64.rpm
libxml2-debuginfo-2.9.1-6.el7.4.ppc.rpm
libxml2-debuginfo-2.9.1-6.el7.4.ppc64.rpm
libxml2-devel-2.9.1-6.el7.4.ppc.rpm
libxml2-devel-2.9.1-6.el7.4.ppc64.rpm
libxml2-python-2.9.1-6.el7.4.ppc64.rpm

ppc64le:
libxml2-2.9.1-6.el7.4.ppc64le.rpm
libxml2-debuginfo-2.9.1-6.el7.4.ppc64le.rpm
libxml2-devel-2.9.1-6.el7.4.ppc64le.rpm
libxml2-python-2.9.1-6.el7.4.ppc64le.rpm

s390x:
libxml2-2.9.1-6.el7.4.s390.rpm
libxml2-2.9.1-6.el7.4.s390x.rpm
libxml2-debuginfo-2.9.1-6.el7.4.s390.rpm
libxml2-debuginfo-2.9.1-6.el7.4.s390x.rpm
libxml2-devel-2.9.1-6.el7.4.s390.rpm
libxml2-devel-2.9.1-6.el7.4.s390x.rpm
libxml2-python-2.9.1-6.el7.4.s390x.rpm

x86_64:
libxml2-2.9.1-6.el7.4.i686.rpm
libxml2-2.9.1-6.el7.4.x86_64.rpm
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-devel-2.9.1-6.el7.4.i686.rpm
libxml2-devel-2.9.1-6.el7.4.x86_64.rpm
libxml2-python-2.9.1-6.el7.4.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
libxml2-debuginfo-2.9.1-6.el7.4.ppc.rpm
libxml2-debuginfo-2.9.1-6.el7.4.ppc64.rpm
libxml2-static-2.9.1-6.el7.4.ppc.rpm
libxml2-static-2.9.1-6.el7.4.ppc64.rpm

ppc64le:
libxml2-debuginfo-2.9.1-6.el7.4.ppc64le.rpm
libxml2-static-2.9.1-6.el7.4.ppc64le.rpm

s390x:
libxml2-debuginfo-2.9.1-6.el7.4.s390.rpm
libxml2-debuginfo-2.9.1-6.el7.4.s390x.rpm
libxml2-static-2.9.1-6.el7.4.s390.rpm
libxml2-static-2.9.1-6.el7.4.s390x.rpm

x86_64:
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-static-2.9.1-6.el7.4.i686.rpm
libxml2-static-2.9.1-6.el7.4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
libxml2-2.9.1-6.el7.4.src.rpm

x86_64:
libxml2-2.9.1-6.el7.4.i686.rpm
libxml2-2.9.1-6.el7.4.x86_64.rpm
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-devel-2.9.1-6.el7.4.i686.rpm
libxml2-devel-2.9.1-6.el7.4.x86_64.rpm
libxml2-python-2.9.1-6.el7.4.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
libxml2-debuginfo-2.9.1-6.el7.4.i686.rpm
libxml2-debuginfo-2.9.1-6.el7.4.x86_64.rpm
libxml2-static-2.9.1-6.el7.4.i686.rpm
libxml2-static-2.9.1-6.el7.4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key

7. References:

https://access.redhat.com/security/cve/CVE-2015-8035
https://access.redhat.com/security/cve/CVE-2016-5131
https://access.redhat.com/security/cve/CVE-2017-15412
https://access.redhat.com/security/cve/CVE-2017-18258
https://access.redhat.com/security/cve/CVE-2018-14404
https://access.redhat.com/security/cve/CVE-2018-14567
https://access.redhat.com/security/updates/classification#moderate
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.8_release_notes/index

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact

Copyright 2020 Red Hat, Inc.
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