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) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host. (CVE-2017-2615)
Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process. (CVE-2017-2620)
An out-of-bounds read-access flaw was found in the QEMU emulator built with IP checksum routines. The flaw could occur when computing a TCP/UDP packet’s checksum, because a QEMU function used the packet’s payload length without checking against the data buffer’s size. A user inside a guest could use this flaw to crash the QEMU process (denial of service). (CVE-2016-2857)
Red Hat would like to thank Wjjzhang (Tencent.com Inc.) and Li Qiang (360.cn Inc.) for reporting CVE-2017-2615 and Ling Liu (Qihoo 360 Inc.) for reporting CVE-2016-2857.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 6 | x86_64 | qemu-img-rhev | < 0.12.1.2-2.491.el6_8.7 | qemu-img-rhev-0.12.1.2-2.491.el6_8.7.x86_64.rpm |
RedHat | 6 | x86_64 | qemu-kvm-rhev | < 0.12.1.2-2.491.el6_8.7 | qemu-kvm-rhev-0.12.1.2-2.491.el6_8.7.x86_64.rpm |
RedHat | 6 | x86_64 | qemu-kvm-rhev-tools | < 0.12.1.2-2.491.el6_8.7 | qemu-kvm-rhev-tools-0.12.1.2-2.491.el6_8.7.x86_64.rpm |
RedHat | 6 | x86_64 | qemu-kvm-rhev-debuginfo | < 0.12.1.2-2.491.el6_8.7 | qemu-kvm-rhev-debuginfo-0.12.1.2-2.491.el6_8.7.x86_64.rpm |