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Sicherheit: Denial of Service in libxml2
Aktuelle Meldungen Distributionen
Name: Denial of Service in libxml2
ID: RHSA-2015:1419-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Mi, 22. Juli 2015, 09:27
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1819
Applikationen: libxml2

Originalnachricht

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

Synopsis: Low: libxml2 security and bug fix update
Advisory ID: RHSA-2015:1419-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1419.html
Issue date: 2015-07-22
Updated on: 2015-03-16
CVE Names: CVE-2015-1819
=====================================================================

1. Summary:

Updated libxml2 packages that fix one security issue and one bug are now
available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Low 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

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

A denial of service flaw was found in the way the libxml2 library parsed
certain XML files. An attacker could provide a specially crafted XML file
that, when parsed by an application using libxml2, could cause that
application to use an excessive amount of memory. (CVE-2015-1819)

This issue was discovered by Florian Weimer of Red Hat Product Security.

This update also fixes the following bug:

This update fixes an error that occurred when running a test case for the
serialization of HTML documents. (BZ#1004513)

Users of libxml2 are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. The desktop must be
restarted (log out, then log back in) for this update to take effect.

4. Solution:

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

For details on how to apply this update, refer to:

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

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

1211278 - CVE-2015-1819 libxml2: denial of service processing a crafted XML
document

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
libxml2-2.7.6-20.el6.src.rpm

i386:
libxml2-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-python-2.7.6-20.el6.i686.rpm

x86_64:
libxml2-2.7.6-20.el6.i686.rpm
libxml2-2.7.6-20.el6.x86_64.rpm
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-python-2.7.6-20.el6.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

i386:
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-devel-2.7.6-20.el6.i686.rpm
libxml2-static-2.7.6-20.el6.i686.rpm

x86_64:
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-devel-2.7.6-20.el6.i686.rpm
libxml2-devel-2.7.6-20.el6.x86_64.rpm
libxml2-static-2.7.6-20.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
libxml2-2.7.6-20.el6.src.rpm

x86_64:
libxml2-2.7.6-20.el6.i686.rpm
libxml2-2.7.6-20.el6.x86_64.rpm
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-python-2.7.6-20.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

x86_64:
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-devel-2.7.6-20.el6.i686.rpm
libxml2-devel-2.7.6-20.el6.x86_64.rpm
libxml2-static-2.7.6-20.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
libxml2-2.7.6-20.el6.src.rpm

i386:
libxml2-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-devel-2.7.6-20.el6.i686.rpm
libxml2-python-2.7.6-20.el6.i686.rpm

ppc64:
libxml2-2.7.6-20.el6.ppc.rpm
libxml2-2.7.6-20.el6.ppc64.rpm
libxml2-debuginfo-2.7.6-20.el6.ppc.rpm
libxml2-debuginfo-2.7.6-20.el6.ppc64.rpm
libxml2-devel-2.7.6-20.el6.ppc.rpm
libxml2-devel-2.7.6-20.el6.ppc64.rpm
libxml2-python-2.7.6-20.el6.ppc64.rpm

s390x:
libxml2-2.7.6-20.el6.s390.rpm
libxml2-2.7.6-20.el6.s390x.rpm
libxml2-debuginfo-2.7.6-20.el6.s390.rpm
libxml2-debuginfo-2.7.6-20.el6.s390x.rpm
libxml2-devel-2.7.6-20.el6.s390.rpm
libxml2-devel-2.7.6-20.el6.s390x.rpm
libxml2-python-2.7.6-20.el6.s390x.rpm

x86_64:
libxml2-2.7.6-20.el6.i686.rpm
libxml2-2.7.6-20.el6.x86_64.rpm
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-devel-2.7.6-20.el6.i686.rpm
libxml2-devel-2.7.6-20.el6.x86_64.rpm
libxml2-python-2.7.6-20.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

i386:
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-static-2.7.6-20.el6.i686.rpm

ppc64:
libxml2-debuginfo-2.7.6-20.el6.ppc64.rpm
libxml2-static-2.7.6-20.el6.ppc64.rpm

s390x:
libxml2-debuginfo-2.7.6-20.el6.s390x.rpm
libxml2-static-2.7.6-20.el6.s390x.rpm

x86_64:
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-static-2.7.6-20.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
libxml2-2.7.6-20.el6.src.rpm

i386:
libxml2-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-devel-2.7.6-20.el6.i686.rpm
libxml2-python-2.7.6-20.el6.i686.rpm

x86_64:
libxml2-2.7.6-20.el6.i686.rpm
libxml2-2.7.6-20.el6.x86_64.rpm
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-devel-2.7.6-20.el6.i686.rpm
libxml2-devel-2.7.6-20.el6.x86_64.rpm
libxml2-python-2.7.6-20.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

i386:
libxml2-debuginfo-2.7.6-20.el6.i686.rpm
libxml2-static-2.7.6-20.el6.i686.rpm

x86_64:
libxml2-debuginfo-2.7.6-20.el6.x86_64.rpm
libxml2-static-2.7.6-20.el6.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-2015-1819
https://access.redhat.com/security/updates/classification/#low

8. Contact:

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

Copyright 2015 Red Hat, Inc.
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