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RedHat Update for qemu-kvm RHSA-2017:1856-01

Information

Severity

Severity

Medium

Family

Family

Red Hat Local Security Checks

CVSSv2 Base

CVSSv2 Base

4.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

5 years ago

Summary

The remote host is missing an update for the 'qemu-kvm' package(s) announced via the referenced advisory.

Insight

Insight

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): * An out-of-bounds memory access issue was found in Quick Emulator (QEMU) in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process. (CVE-2017-2633) * An integer overflow flaw was found in Quick Emulator (QEMU) in the CCID Card device support. The flaw could occur while passing messages via command/response packets to and from the host. A privileged user inside a guest could use this flaw to crash the QEMU process. (CVE-2017-5898) * An information exposure flaw was found in Quick Emulator (QEMU) in Task Priority Register (TPR) optimizations for 32-bit Windows guests. The flaw could occur while accessing TPR. A privileged user inside a guest could use this issue to read portions of the host memory. (CVE-2016-4020) Red Hat would like to thank Li Qiang (360.cn Inc.) for reporting CVE-2017-5898 and Donghai Zdh (Alibaba Inc.) for reporting CVE-2016-4020. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.

Affected Software

Affected Software

qemu-kvm on Red Hat Enterprise Linux Server (v. 7)

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Please Install the Updated Packages.

Common Vulnerabilities and Exposures (CVE)