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CentOS: CESA-2015:0675-01 Critical: Libvirt Memory Exploitation

An updated spice-server package that fixes one security issue is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ==================================================================== Red Hat Security Advisory Synopsis: Important: spice-server security update Advisory ID: RHSA-2015:1715-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2015:1715.html Issue date: 2015-09-03 CVE Names: CVE-2015-3247 ==================================================================== 1. Summary: An updated spice-server package that fixes one security issue is now available for Red Hat Enterprise Linux 6. 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: Red Hat Enterprise Linux Desktop (v. 6) - x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - 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) - x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - x86_64 Red Hat Enterprise Linux Workstation (v. 6) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64 3. Description: The Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol for virtual environments. SPICE users can access a virtualized desktop or server from the local system or any system with network access to the server. SPICE is used in Red Hat Enterprise Linux for viewing virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor or on Red Hat Enterprise VirtualizationHypervisors. A race condition flaw, leading to a heap-based memory corruption, was found in spice's worker_update_monitors_config() function, which runs under the QEMU-KVM context on the host. A user in a guest could leverage this flaw to crash the host QEMU-KVM process or, possibly, execute arbitrary code with the privileges of the host QEMU-KVM process. (CVE-2015-3247) This issue was discovered by Frediano Ziglio of Red Hat. All spice-server users are advised to upgrade to this updated package, which contains a backported patch to correct this issue. 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/): 1233238 - CVE-2015-3247 spice: memory corruption in worker_update_monitors_config() 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: spice-server-0.12.4-12.el6_7.1.src.rpm x86_64: spice-server-0.12.4-12.el6_7.1.x86_64.rpm spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): x86_64: spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm spice-server-devel-0.12.4-12.el6_7.1.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: spice-server-0.12.4-12.el6_7.1.src.rpm x86_64: spice-server-0.12.4-12.el6_7.1.x86_64.rpm spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm spice-server-devel-0.12.4-12.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: spice-server-0.12.4-12.el6_7.1.src.rpm x86_64: spice-server-0.12.4-12.el6_7.1.x86_64.rpm spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): x86_64: spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm spice-server-devel-0.12.4-12.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v.6): Source: spice-server-0.12.4-12.el6_7.1.src.rpm x86_64: spice-server-0.12.4-12.el6_7.1.x86_64.rpm spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): x86_64: spice-server-debuginfo-0.12.4-12.el6_7.1.x86_64.rpm spice-server-devel-0.12.4-12.el6_7.1.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-2015-3247 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFV6I6JXlSAg2UNWIIRAvcgAKCGsZhram/SKWWsxH6ZqP5D8nTqoACgv3/W QLr5/LvrNi6fv+TpKsCLJnc=e4if -----END PGP SIGNATURE----- -- Enterprise-watch-list mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . Keep informed about the newest spice-server vulnerability notice from Red Hat regarding potential heap corruption issues.. spice-server security, Red Hat Enterprise Linux, heap corruption fix. . Severity: Important. LinuxSecurity.com Team

Sep 03, 2015 •Important Red Hat