CVE-2016-6888

Impact:
Low
Public Date:
2016-08-09
CWE:
CWE-476
Bugzilla:
1369031: CVE-2016-6888 Qemu: net: vmxnet: integer overflow in packet initialisation

The MITRE CVE dictionary describes this issue as:

Integer overflow in the net_tx_pkt_init function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU process crash) via the maximum fragmentation count, which triggers an unchecked multiplication and NULL pointer dereference.

Find out more about CVE-2016-6888 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

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

CVSS3 Base Score 3.5
CVSS3 Base Metrics CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required Low
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).

Red Hat Security Errata

Platform Errata Release Date
Red Hat OpenStack Platform 8.0 (Liberty) (qemu-kvm-rhev) RHSA-2017:2408 2017-08-01
Red Hat OpenStack Platform 11.0 (Ocata) (qemu-kvm-rhev) RHSA-2017:2408 2017-08-01
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (qemu-kvm-rhev) RHSA-2017:2392 2017-08-01
Red Hat OpenStack Platform 10 (qemu-kvm-rhev) RHSA-2017:2408 2017-08-01
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 (qemu-kvm-rhev) RHSA-2017:2408 2017-08-01
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 (qemu-kvm-rhev) RHSA-2017:2408 2017-08-01
Red Hat OpenStack Platform 9.0 (qemu-kvm-rhev) RHSA-2017:2408 2017-08-01

Affected Packages State

Platform Package State
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) qemu-kvm-rhev Will not fix
Red Hat Enterprise Linux 7 qemu-kvm Will not fix
Red Hat Enterprise Linux 6 qemu-kvm Not affected
Red Hat Enterprise Linux 5 xen Not affected
Red Hat Enterprise Linux 5 kvm Not affected

Acknowledgements

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

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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