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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1588 Important: libxml2 security update 24 June 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libxml2 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2016-4449 CVE-2016-4448 CVE-2016-4447 CVE-2016-3705 CVE-2016-3627 CVE-2016-1840 CVE-2016-1839 CVE-2016-1838 CVE-2016-1837 CVE-2016-1836 CVE-2016-1835 CVE-2016-1834 CVE-2016-1833 CVE-2016-1762 Reference: ESB-2016.1452 ESB-2016.1398 ESB-2016.0741 Original Bulletin: https://access.redhat.com/errata/RHSA-2016:1292 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: libxml2 security update Advisory ID: RHSA-2016:1292-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2016:1292 Issue date: 2016-06-23 CVE Names: CVE-2016-1762 CVE-2016-1833 CVE-2016-1834 CVE-2016-1835 CVE-2016-1836 CVE-2016-1837 CVE-2016-1838 CVE-2016-1839 CVE-2016-1840 CVE-2016-3627 CVE-2016-3705 CVE-2016-4447 CVE-2016-4448 CVE-2016-4449 ===================================================================== 1. Summary: An update for libxml2 is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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 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 (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, 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): A heap-based buffer overflow flaw was found in the way libxml2 parsed certain crafted XML input. 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 execute arbitrary code with the permissions of the user running the application. (CVE-2016-1834, CVE-2016-1840) Multiple denial of service flaws were found in libxml2. A remote attacker could provide a specially crafted XML file that, when processed by an application using libxml2, could cause that application to crash. (CVE-2016-1762, CVE-2016-1833, CVE-2016-1835, CVE-2016-1836, CVE-2016-1837, CVE-2016-1838, CVE-2016-1839, CVE-2016-3627, CVE-2016-3705, CVE-2016-4447, CVE-2016-4448, CVE-2016-4449) 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 For the update to take effect, all applications linked to the libxml2 library must be restarted, or the system rebooted. 5. Bugs fixed (https://bugzilla.redhat.com/): 1319829 - CVE-2016-3627 libxml2: stack exhaustion while parsing xml files in recovery mode 1332443 - CVE-2016-3705 libxml2: stack overflow before detecting invalid XML file 1338682 - CVE-2016-1833 libxml2: Heap-based buffer overread in htmlCurrentChar 1338686 - CVE-2016-4447 libxml2: Heap-based buffer underreads due to xmlParseName 1338691 - CVE-2016-1835 libxml2: Heap use-after-free in xmlSAX2AttributeNs 1338696 - CVE-2016-1837 libxml2: Heap use-after-free in htmlPArsePubidLiteral and htmlParseSystemiteral 1338700 - CVE-2016-4448 libxml2: Format string vulnerability 1338701 - CVE-2016-4449 libxml2: Inappropriate fetch of entities content 1338702 - CVE-2016-1836 libxml2: Heap use-after-free in xmlDictComputeFastKey 1338703 - CVE-2016-1839 libxml2: Heap-based buffer overread in xmlDictAddString 1338705 - CVE-2016-1838 libxml2: Heap-based buffer overread in xmlPArserPrintFileContextInternal 1338706 - CVE-2016-1840 libxml2: Heap-buffer-overflow in xmlFAParserPosCharGroup 1338708 - CVE-2016-1834 libxml2: Heap-buffer-overflow in xmlStrncat 1338711 - CVE-2016-1762 libxml2: Heap-based buffer-overread in xmlNextChar 6. Package List: Red Hat Enterprise Linux HPC Node (v. 6): Source: libxml2-2.7.6-21.el6_8.1.src.rpm x86_64: libxml2-2.7.6-21.el6_8.1.i686.rpm libxml2-2.7.6-21.el6_8.1.x86_64.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.x86_64.rpm libxml2-python-2.7.6-21.el6_8.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.x86_64.rpm libxml2-devel-2.7.6-21.el6_8.1.i686.rpm libxml2-devel-2.7.6-21.el6_8.1.x86_64.rpm libxml2-static-2.7.6-21.el6_8.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: libxml2-2.7.6-21.el6_8.1.src.rpm i386: libxml2-2.7.6-21.el6_8.1.i686.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-devel-2.7.6-21.el6_8.1.i686.rpm libxml2-python-2.7.6-21.el6_8.1.i686.rpm ppc64: libxml2-2.7.6-21.el6_8.1.ppc.rpm libxml2-2.7.6-21.el6_8.1.ppc64.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.ppc.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.ppc64.rpm libxml2-devel-2.7.6-21.el6_8.1.ppc.rpm libxml2-devel-2.7.6-21.el6_8.1.ppc64.rpm libxml2-python-2.7.6-21.el6_8.1.ppc64.rpm s390x: libxml2-2.7.6-21.el6_8.1.s390.rpm libxml2-2.7.6-21.el6_8.1.s390x.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.s390.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.s390x.rpm libxml2-devel-2.7.6-21.el6_8.1.s390.rpm libxml2-devel-2.7.6-21.el6_8.1.s390x.rpm libxml2-python-2.7.6-21.el6_8.1.s390x.rpm x86_64: libxml2-2.7.6-21.el6_8.1.i686.rpm libxml2-2.7.6-21.el6_8.1.x86_64.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.x86_64.rpm libxml2-devel-2.7.6-21.el6_8.1.i686.rpm libxml2-devel-2.7.6-21.el6_8.1.x86_64.rpm libxml2-python-2.7.6-21.el6_8.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): i386: libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-static-2.7.6-21.el6_8.1.i686.rpm ppc64: libxml2-debuginfo-2.7.6-21.el6_8.1.ppc64.rpm libxml2-static-2.7.6-21.el6_8.1.ppc64.rpm s390x: libxml2-debuginfo-2.7.6-21.el6_8.1.s390x.rpm libxml2-static-2.7.6-21.el6_8.1.s390x.rpm x86_64: libxml2-debuginfo-2.7.6-21.el6_8.1.x86_64.rpm libxml2-static-2.7.6-21.el6_8.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: libxml2-2.7.6-21.el6_8.1.src.rpm i386: libxml2-2.7.6-21.el6_8.1.i686.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-devel-2.7.6-21.el6_8.1.i686.rpm libxml2-python-2.7.6-21.el6_8.1.i686.rpm x86_64: libxml2-2.7.6-21.el6_8.1.i686.rpm libxml2-2.7.6-21.el6_8.1.x86_64.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-debuginfo-2.7.6-21.el6_8.1.x86_64.rpm libxml2-devel-2.7.6-21.el6_8.1.i686.rpm libxml2-devel-2.7.6-21.el6_8.1.x86_64.rpm libxml2-python-2.7.6-21.el6_8.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): i386: libxml2-debuginfo-2.7.6-21.el6_8.1.i686.rpm libxml2-static-2.7.6-21.el6_8.1.i686.rpm x86_64: libxml2-debuginfo-2.7.6-21.el6_8.1.x86_64.rpm libxml2-static-2.7.6-21.el6_8.1.x86_64.rpm Red Hat Enterprise Linux Client (v. 7): Source: libxml2-2.9.1-6.el7_2.3.src.rpm x86_64: libxml2-2.9.1-6.el7_2.3.i686.rpm libxml2-2.9.1-6.el7_2.3.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-python-2.9.1-6.el7_2.3.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.3.i686.rpm libxml2-devel-2.9.1-6.el7_2.3.x86_64.rpm libxml2-static-2.9.1-6.el7_2.3.i686.rpm libxml2-static-2.9.1-6.el7_2.3.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: libxml2-2.9.1-6.el7_2.3.src.rpm x86_64: libxml2-2.9.1-6.el7_2.3.i686.rpm libxml2-2.9.1-6.el7_2.3.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-python-2.9.1-6.el7_2.3.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.3.i686.rpm libxml2-devel-2.9.1-6.el7_2.3.x86_64.rpm libxml2-static-2.9.1-6.el7_2.3.i686.rpm libxml2-static-2.9.1-6.el7_2.3.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: libxml2-2.9.1-6.el7_2.3.src.rpm ppc64: libxml2-2.9.1-6.el7_2.3.ppc.rpm libxml2-2.9.1-6.el7_2.3.ppc64.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.ppc.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.ppc64.rpm libxml2-devel-2.9.1-6.el7_2.3.ppc.rpm libxml2-devel-2.9.1-6.el7_2.3.ppc64.rpm libxml2-python-2.9.1-6.el7_2.3.ppc64.rpm ppc64le: libxml2-2.9.1-6.el7_2.3.ppc64le.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.ppc64le.rpm libxml2-devel-2.9.1-6.el7_2.3.ppc64le.rpm libxml2-python-2.9.1-6.el7_2.3.ppc64le.rpm s390x: libxml2-2.9.1-6.el7_2.3.s390.rpm libxml2-2.9.1-6.el7_2.3.s390x.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.s390.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.s390x.rpm libxml2-devel-2.9.1-6.el7_2.3.s390.rpm libxml2-devel-2.9.1-6.el7_2.3.s390x.rpm libxml2-python-2.9.1-6.el7_2.3.s390x.rpm x86_64: libxml2-2.9.1-6.el7_2.3.i686.rpm libxml2-2.9.1-6.el7_2.3.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.3.i686.rpm libxml2-devel-2.9.1-6.el7_2.3.x86_64.rpm libxml2-python-2.9.1-6.el7_2.3.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: libxml2-debuginfo-2.9.1-6.el7_2.3.ppc.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.ppc64.rpm libxml2-static-2.9.1-6.el7_2.3.ppc.rpm libxml2-static-2.9.1-6.el7_2.3.ppc64.rpm ppc64le: libxml2-debuginfo-2.9.1-6.el7_2.3.ppc64le.rpm libxml2-static-2.9.1-6.el7_2.3.ppc64le.rpm s390x: libxml2-debuginfo-2.9.1-6.el7_2.3.s390.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.s390x.rpm libxml2-static-2.9.1-6.el7_2.3.s390.rpm libxml2-static-2.9.1-6.el7_2.3.s390x.rpm x86_64: libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-static-2.9.1-6.el7_2.3.i686.rpm libxml2-static-2.9.1-6.el7_2.3.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: libxml2-2.9.1-6.el7_2.3.src.rpm x86_64: libxml2-2.9.1-6.el7_2.3.i686.rpm libxml2-2.9.1-6.el7_2.3.x86_64.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-devel-2.9.1-6.el7_2.3.i686.rpm libxml2-devel-2.9.1-6.el7_2.3.x86_64.rpm libxml2-python-2.9.1-6.el7_2.3.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: libxml2-debuginfo-2.9.1-6.el7_2.3.i686.rpm libxml2-debuginfo-2.9.1-6.el7_2.3.x86_64.rpm libxml2-static-2.9.1-6.el7_2.3.i686.rpm libxml2-static-2.9.1-6.el7_2.3.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-2016-1762 https://access.redhat.com/security/cve/CVE-2016-1833 https://access.redhat.com/security/cve/CVE-2016-1834 https://access.redhat.com/security/cve/CVE-2016-1835 https://access.redhat.com/security/cve/CVE-2016-1836 https://access.redhat.com/security/cve/CVE-2016-1837 https://access.redhat.com/security/cve/CVE-2016-1838 https://access.redhat.com/security/cve/CVE-2016-1839 https://access.redhat.com/security/cve/CVE-2016-1840 https://access.redhat.com/security/cve/CVE-2016-3627 https://access.redhat.com/security/cve/CVE-2016-3705 https://access.redhat.com/security/cve/CVE-2016-4447 https://access.redhat.com/security/cve/CVE-2016-4448 https://access.redhat.com/security/cve/CVE-2016-4449 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2016 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFXa8B8XlSAg2UNWIIRAh9ZAJ99xgPhOaIopIxmynm+vlDcmw4jFACeLvTm ZsVLEgJAF0Zt6xZVzqvVW7U= =fREV - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. 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