-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security and bug fix update Advisory ID: RHSA-2017:3369-01 Product: Red Hat Virtualization Advisory URL: https://access.redhat.com/errata/RHSA-2017:3369 Issue date: 2017-11-30 CVE Names: CVE-2017-11334 CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat Enterprise Virtualization (RHEV) 4.X, Red Hat Enterprise Virtualization Hypervisor (RHEV-H) and Agents for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. 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: Management Agent for RHEL 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): * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. Bug Fix(es): * Improvements made for qemu 2.9 to the NBD code used during live storage migration were not robust to an abrupt exit of the other end of the connection; the result was that live migration could fail if the source side NBD connection failed. The NBD code has been fixed to be more robust regardless of what the other side of the connection does. (BZ#1495474) 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/): 1471638 - CVE-2017-11334 Qemu: exec: oob access during dma operation 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1495474 - Fail to quit source qemu when do live migration after mirroring guest to NBD server [rhel-7.4.z] 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Management Agent for RHEL 7 Hosts: Source: qemu-kvm-rhev-2.9.0-16.el7_4.11.src.rpm ppc64le: qemu-img-rhev-2.9.0-16.el7_4.11.ppc64le.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.ppc64le.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.ppc64le.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.ppc64le.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.ppc64le.rpm x86_64: qemu-img-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.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-2017-11334 https://access.redhat.com/security/cve/CVE-2017-14167 https://access.redhat.com/security/cve/CVE-2017-15289 https://access.redhat.com/security/updates/classification/#moderate 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 iD8DBQFaIGrwXlSAg2UNWIIRAgKeAJ9197cvnZ06WVj4h6Nh2UBIMwNugACghmQF gSIPLM+x+qgwyFgnDb0un4s= =iIdq -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce