8.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.003 Low
EPSS
Percentile
63.1%
KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the
user-space component for running virtual machines using KVM.
A use-after-free flaw was found in the way QEMU’s IDE AHCI emulator
processed certain AHCI Native Command Queuing (NCQ) AIO commands.
A privileged guest user could use this flaw to crash the QEMU process
instance or, potentially, execute arbitrary code on the host with
privileges of the QEMU process. (CVE-2016-1568)
An out-of-bounds read/write flaw was discovered in the way QEMU’s Firmware
Configuration device emulation processed certain firmware configurations.
A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the
QEMU process instance or, potentially, execute arbitrary code on the host
with privileges of the QEMU process. (CVE-2016-1714)
Red Hat would like to thank Qinghao Tang of Qihoo 360 Marvel Team for
reporting the CVE-2016-1568 issue, and Donghai Zhu of Alibaba for reporting
the CVE-2016-1714 issue.
All qemu-kvm-rhev users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. 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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 7 | x86_64 | qemu-kvm-rhev | < 2.3.0-31.el7_2.7 | qemu-kvm-rhev-2.3.0-31.el7_2.7.x86_64.rpm |
RedHat | 7 | x86_64 | libcacard-rhev | < 2.3.0-31.el7_2.7 | libcacard-rhev-2.3.0-31.el7_2.7.x86_64.rpm |
RedHat | 7 | x86_64 | libcacard-tools-rhev | < 2.3.0-31.el7_2.7 | libcacard-tools-rhev-2.3.0-31.el7_2.7.x86_64.rpm |
RedHat | 7 | x86_64 | qemu-img-rhev | < 2.3.0-31.el7_2.7 | qemu-img-rhev-2.3.0-31.el7_2.7.x86_64.rpm |
RedHat | 7 | src | qemu-kvm-rhev | < 2.3.0-31.el7_2.7 | qemu-kvm-rhev-2.3.0-31.el7_2.7.src.rpm |
RedHat | 7 | x86_64 | qemu-kvm-rhev-debuginfo | < 2.3.0-31.el7_2.7 | qemu-kvm-rhev-debuginfo-2.3.0-31.el7_2.7.x86_64.rpm |
RedHat | 7 | x86_64 | libcacard-devel-rhev | < 2.3.0-31.el7_2.7 | libcacard-devel-rhev-2.3.0-31.el7_2.7.x86_64.rpm |
RedHat | 7 | x86_64 | qemu-kvm-common-rhev | < 2.3.0-31.el7_2.7 | qemu-kvm-common-rhev-2.3.0-31.el7_2.7.x86_64.rpm |
RedHat | 7 | x86_64 | qemu-kvm-tools-rhev | < 2.3.0-31.el7_2.7 | qemu-kvm-tools-rhev-2.3.0-31.el7_2.7.x86_64.rpm |
8.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.003 Low
EPSS
Percentile
63.1%