-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm-rhev security and bug fix update Advisory ID: RHSA-2017:1431-01 Product: Red Hat Virtualization Advisory URL: https://access.redhat.com/errata/RHSA-2017:1431 Issue date: 2017-06-13 CVE Names: CVE-2017-7718 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for RHEV 3.X Hypervisor and Agents for RHEL-7 and RHEV 4.X RHEV-H and Agents for RHEL-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: Managment Agent for RHEL 7 Hosts - ppc64le, x86_64 RHEV-H and VDSM for 7 Hosts - ppc64le, x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718. Bug Fix(es): * When using post-copy migration with the virtio Random Number Generator (RNG) device, virtio-rng continued generating data while the migration was already in post-copy mode. Consequently, the migration sometimes failed and the error message "Failed to load virtio-rng:virtio" was displayed. The source code has been improved and the problem no longer occurs in the scenario described. (BZ#1450375) 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 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1443441 - CVE-2017-7718 Qemu: display: cirrus: OOB read access issue 1450375 - Migration failed with postcopy enabled from rhel7.3.z host to rhel7.4 host "error while loading state for instance 0x0 of device 'pci@800000020000000:05.0/virtio-rng'" 6. Package List: Managment Agent for RHEL 7 Hosts: Source: qemu-kvm-rhev-2.6.0-28.el7_3.10.src.rpm ppc64le: qemu-img-rhev-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-common-rhev-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-rhev-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-tools-rhev-2.6.0-28.el7_3.10.ppc64le.rpm x86_64: qemu-img-rhev-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-common-rhev-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-rhev-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-tools-rhev-2.6.0-28.el7_3.10.x86_64.rpm RHEV-H and VDSM for 7 Hosts: Source: qemu-kvm-rhev-2.6.0-28.el7_3.10.src.rpm ppc64le: qemu-img-rhev-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-common-rhev-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-rhev-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.10.ppc64le.rpm qemu-kvm-tools-rhev-2.6.0-28.el7_3.10.ppc64le.rpm x86_64: qemu-img-rhev-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-common-rhev-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-rhev-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.10.x86_64.rpm qemu-kvm-tools-rhev-2.6.0-28.el7_3.10.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-2017-7718 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 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFZP6hTXlSAg2UNWIIRArT0AJ0Sc8IqdJ1M0FX4d7RFkFsTyNfuNQCfabGc muD22oCkddUBURWbSZxU87E= =wtk1 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce