-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm security update Advisory ID: RHSA-2017:3368-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:3368 Issue date: 2017-11-30 CVE Names: CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm is now available 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: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es): * 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 Thomas Garnier (Google.com) for reporting CVE-2017-14167 and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. 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/): 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: qemu-kvm-1.5.3-141.el7_4.4.src.rpm x86_64: qemu-img-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-common-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-debuginfo-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-tools-1.5.3-141.el7_4.4.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): Source: qemu-kvm-1.5.3-141.el7_4.4.src.rpm x86_64: qemu-img-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-common-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-debuginfo-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-tools-1.5.3-141.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: qemu-kvm-1.5.3-141.el7_4.4.src.rpm ppc64: qemu-img-1.5.3-141.el7_4.4.ppc64.rpm qemu-kvm-debuginfo-1.5.3-141.el7_4.4.ppc64.rpm ppc64le: qemu-img-1.5.3-141.el7_4.4.ppc64le.rpm qemu-kvm-debuginfo-1.5.3-141.el7_4.4.ppc64le.rpm x86_64: qemu-img-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-common-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-debuginfo-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-tools-1.5.3-141.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: qemu-kvm-1.5.3-141.el7_4.4.src.rpm x86_64: qemu-img-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-common-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-debuginfo-1.5.3-141.el7_4.4.x86_64.rpm qemu-kvm-tools-1.5.3-141.el7_4.4.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-2017-14167 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 iD8DBQFaIG8oXlSAg2UNWIIRArUVAJ4mfI7Bbz4gVD37GiZnpaRjPGy3hACbBXZv tE1h9nPMAz7KwfMEI3GVU6w= =a1bW -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce