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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1307 Important: xen security update 14 May 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: xen Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Impact/Access: Denial of Service -- Existing Account Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-3456 Reference: ESB-2015.1306 ESB-2015.1304 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2015-1002.html Comment: The vulnerability, which has been assigned CVE-2015-3456, is now being referred to as VENOM. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: xen security update Advisory ID: RHSA-2015:1002-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1002.html Issue date: 2015-05-13 CVE Names: CVE-2015-3456 ===================================================================== 1. Summary: Updated xen packages that fix one security issue are now available for Red Hat Enterprise Linux 5. Red Hat Product Security 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. 2. Relevant releases/architectures: RHEL Desktop Multi OS (v. 5 client) - i386, x86_64 RHEL Virtualization (v. 5 server) - i386, ia64, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: The xen packages contain administration tools and the xend service for managing the kernel-xen kernel for virtualization on Red Hat Enterprise Linux. An out-of-bounds memory access flaw was found in the way QEMU's virtual Floppy Disk Controller (FDC) handled FIFO buffer access while processing certain FDC commands. A privileged guest user could use this flaw to crash the guest or, potentially, execute arbitrary code on the host with the privileges of the host's QEMU process corresponding to the guest. (CVE-2015-3456) Red Hat would like to thank Jason Geffner of CrowdStrike for reporting this issue. All xen users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, all running fully-virtualized guests must be restarted 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/): 1218611 - CVE-2015-3456 qemu: fdc: out-of-bounds fifo buffer memory access 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: xen-3.0.3-146.el5_11.src.rpm i386: xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-libs-3.0.3-146.el5_11.i386.rpm x86_64: xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-debuginfo-3.0.3-146.el5_11.x86_64.rpm xen-libs-3.0.3-146.el5_11.i386.rpm xen-libs-3.0.3-146.el5_11.x86_64.rpm RHEL Desktop Multi OS (v. 5 client): Source: xen-3.0.3-146.el5_11.src.rpm i386: xen-3.0.3-146.el5_11.i386.rpm xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-devel-3.0.3-146.el5_11.i386.rpm x86_64: xen-3.0.3-146.el5_11.x86_64.rpm xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-debuginfo-3.0.3-146.el5_11.x86_64.rpm xen-devel-3.0.3-146.el5_11.i386.rpm xen-devel-3.0.3-146.el5_11.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: xen-3.0.3-146.el5_11.src.rpm i386: xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-libs-3.0.3-146.el5_11.i386.rpm ia64: xen-debuginfo-3.0.3-146.el5_11.ia64.rpm xen-libs-3.0.3-146.el5_11.ia64.rpm x86_64: xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-debuginfo-3.0.3-146.el5_11.x86_64.rpm xen-libs-3.0.3-146.el5_11.i386.rpm xen-libs-3.0.3-146.el5_11.x86_64.rpm RHEL Virtualization (v. 5 server): Source: xen-3.0.3-146.el5_11.src.rpm i386: xen-3.0.3-146.el5_11.i386.rpm xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-devel-3.0.3-146.el5_11.i386.rpm ia64: xen-3.0.3-146.el5_11.ia64.rpm xen-debuginfo-3.0.3-146.el5_11.ia64.rpm xen-devel-3.0.3-146.el5_11.ia64.rpm x86_64: xen-3.0.3-146.el5_11.x86_64.rpm xen-debuginfo-3.0.3-146.el5_11.i386.rpm xen-debuginfo-3.0.3-146.el5_11.x86_64.rpm xen-devel-3.0.3-146.el5_11.i386.rpm xen-devel-3.0.3-146.el5_11.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-2015-3456 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 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFVU1nEXlSAg2UNWIIRAqUxAJ4/PAGie2atGBxiE9sxg6XvYfOdnwCghYMV N+LpzXLkVxe9V4a19FaVRjk= =UhFF - -----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. 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