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
22.8%
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-based buffer overflow issue. The flaw could occur while processing iSCSI asynchronous I/O ioctl(2) calls. A user inside a guest could exploit this flaw to crash the QEMU process resulting in denial of service, or potentially leverage it to execute arbitrary code with QEMU-process privileges 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 results in 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-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 | 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 |
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 | 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-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-img-rhev | < 2.3.0-31.el7_2.21 | qemu-img-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
22.8%