7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
23.9%
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 in environments managed by Red Hat Enterprise Virtualization Manager.
Security Fix(es):
Quick Emulator(Qemu) built with the Block driver for iSCSI images support (virtio-blk) is vulnerable to a heap buffer overflow issue. It could occur while processing iSCSI asynchronous I/O ioctl(2) calls. A user inside guest could use this flaw to crash the Qemu process resulting in DoS or potentially leverage it to execute arbitrary code with privileges of the Qemu process on the host. (CVE-2016-5126)
Quick emulator(Qemu) built with the virtio framework is vulnerable to an unbounded memory allocation issue. It was found that a malicious guest user could submit more requests than the virtqueue size permits. Processing a request allocates a VirtQueueElement and therefore causes unbounded memory allocation on the host controlled by the guest. (CVE-2016-5403)
Red Hat would like to thank hongzhenhao (Marvel Team) for reporting CVE-2016-5403.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 7 | x86_64 | qemu-kvm-rhev | < 2.3.0-31.el7_2.21 | qemu-kvm-rhev-2.3.0-31.el7_2.21.x86_64.rpm |
RedHat | 7 | x86_64 | qemu-kvm-rhev-debuginfo | < 2.3.0-31.el7_2.21 | qemu-kvm-rhev-debuginfo-2.3.0-31.el7_2.21.x86_64.rpm |
RedHat | 7 | x86_64 | qemu-kvm-tools-rhev | < 2.3.0-31.el7_2.21 | qemu-kvm-tools-rhev-2.3.0-31.el7_2.21.x86_64.rpm |
RedHat | 7 | x86_64 | libcacard-tools-rhev | < 2.3.0-31.el7_2.21 | libcacard-tools-rhev-2.3.0-31.el7_2.21.x86_64.rpm |
RedHat | 7 | src | qemu-kvm-rhev | < 2.3.0-31.el7_2.21 | qemu-kvm-rhev-2.3.0-31.el7_2.21.src.rpm |
RedHat | 7 | x86_64 | qemu-img-rhev | < 2.3.0-31.el7_2.21 | qemu-img-rhev-2.3.0-31.el7_2.21.x86_64.rpm |
RedHat | 7 | x86_64 | qemu-kvm-common-rhev | < 2.3.0-31.el7_2.21 | qemu-kvm-common-rhev-2.3.0-31.el7_2.21.x86_64.rpm |
RedHat | 7 | x86_64 | libcacard-rhev | < 2.3.0-31.el7_2.21 | libcacard-rhev-2.3.0-31.el7_2.21.x86_64.rpm |
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
23.9%