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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1310 Important: libtirpc security update 23 May 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libtirpc Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-8779 Reference: ESB-2017.1309 ESB-2017.1278 ESB-2017.1241 Original Bulletin: https://access.redhat.com/errata/RHSA-2017:1263 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: libtirpc security update Advisory ID: RHSA-2017:1263-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:1263 Issue date: 2017-05-22 CVE Names: CVE-2017-8779 ===================================================================== 1. Summary: An update for libtirpc is now available for 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 Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, 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 libtirpc packages contain SunLib's implementation of transport-independent remote procedure call (TI-RPC) documentation, which includes a library required by programs in the nfs-utils and rpcbind packages. Security Fix(es): * It was found that due to the way rpcbind uses libtirpc (libntirpc), a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer. (CVE-2017-8779) 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1448124 - CVE-2017-8779 rpcbind, libtirpc, libntirpc: Memory leak when failing to parse XDR strings or bytearrays 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: libtirpc-0.2.4-0.8.el7_3.src.rpm x86_64: libtirpc-0.2.4-0.8.el7_3.i686.rpm libtirpc-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-devel-0.2.4-0.8.el7_3.i686.rpm libtirpc-devel-0.2.4-0.8.el7_3.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: libtirpc-0.2.4-0.8.el7_3.src.rpm x86_64: libtirpc-0.2.4-0.8.el7_3.i686.rpm libtirpc-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-devel-0.2.4-0.8.el7_3.i686.rpm libtirpc-devel-0.2.4-0.8.el7_3.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: libtirpc-0.2.4-0.8.el7_3.src.rpm aarch64: libtirpc-0.2.4-0.8.el7_3.aarch64.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.aarch64.rpm ppc64: libtirpc-0.2.4-0.8.el7_3.ppc.rpm libtirpc-0.2.4-0.8.el7_3.ppc64.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.ppc.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.ppc64.rpm ppc64le: libtirpc-0.2.4-0.8.el7_3.ppc64le.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.ppc64le.rpm s390x: libtirpc-0.2.4-0.8.el7_3.s390.rpm libtirpc-0.2.4-0.8.el7_3.s390x.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.s390.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.s390x.rpm x86_64: libtirpc-0.2.4-0.8.el7_3.i686.rpm libtirpc-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): aarch64: libtirpc-debuginfo-0.2.4-0.8.el7_3.aarch64.rpm libtirpc-devel-0.2.4-0.8.el7_3.aarch64.rpm ppc64: libtirpc-debuginfo-0.2.4-0.8.el7_3.ppc.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.ppc64.rpm libtirpc-devel-0.2.4-0.8.el7_3.ppc.rpm libtirpc-devel-0.2.4-0.8.el7_3.ppc64.rpm ppc64le: libtirpc-debuginfo-0.2.4-0.8.el7_3.ppc64le.rpm libtirpc-devel-0.2.4-0.8.el7_3.ppc64le.rpm s390x: libtirpc-debuginfo-0.2.4-0.8.el7_3.s390.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.s390x.rpm libtirpc-devel-0.2.4-0.8.el7_3.s390.rpm libtirpc-devel-0.2.4-0.8.el7_3.s390x.rpm x86_64: libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-devel-0.2.4-0.8.el7_3.i686.rpm libtirpc-devel-0.2.4-0.8.el7_3.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: libtirpc-0.2.4-0.8.el7_3.src.rpm x86_64: libtirpc-0.2.4-0.8.el7_3.i686.rpm libtirpc-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: libtirpc-debuginfo-0.2.4-0.8.el7_3.i686.rpm libtirpc-debuginfo-0.2.4-0.8.el7_3.x86_64.rpm libtirpc-devel-0.2.4-0.8.el7_3.i686.rpm libtirpc-devel-0.2.4-0.8.el7_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-2017-8779 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 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFZImHGXlSAg2UNWIIRAiX8AJ9IHJZbg87AHh5tSxprdrgCOWpSYACgs7Uk 20CJpxu10LU3dn4JOf4/Hh8= =Pxq5 - -----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. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. 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