CVE-2016-6490

Impact:
Low
Public Date:
2016-07-27
CWE:
CWE-835
Bugzilla:
1361427: CVE-2016-6490 Qemu: virtio: infinite loop in virtqueue_pop

The MITRE CVE dictionary describes this issue as:

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the descriptor buffer.

Find out more about CVE-2016-6490 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 2.3
Base Metrics AV:A/AC:M/Au:S/C:N/I:N/A:P
Access Vector Adjacent Network
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 2.4
CVSS3 Base Metrics CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact Low

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat OpenStack Platform 9.0 qemu-kvm-rhev Not affected
Red Hat OpenStack Platform 8.0 (Liberty) qemu-kvm-rhev Not affected
Red Hat OpenStack Platform 10 qemu-kvm-rhev Not affected
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 qemu-kvm-rhev Not affected
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 qemu-kvm-rhev Not affected
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) qemu-kvm-rhev Not affected
Red Hat Enterprise Linux 7 qemu-kvm Not affected
Red Hat Enterprise Linux 6 qemu-kvm Not affected
Red Hat Enterprise Linux 5 kvm Not affected
Red Hat Enterprise Linux 5 xen Not affected

Acknowledgements

Red Hat would like to thank Li Qiang (360.cn Inc.) for reporting this issue.

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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