CVE-2016-7170

Impact:
Moderate
Public Date:
2016-09-08
CWE:
CWE-121
Bugzilla:
1374702: CVE-2016-7170 Qemu: vmware_vga: OOB stack memory access when processing svga command
Quick Emulator (QEMU) built with the VMware-SVGA chipset emulation support is vulnerable to an OOB stack memory write issue. It could occur while processing VGA commands in 'vmsvga_fifo_run' routine. A privileged user inside guest could use this flaw to crash the QEMU process resulting in DoS.

Find out more about CVE-2016-7170 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 3.8
Base Metrics AV:A/AC:M/Au:S/C:N/I:P/A:P
Access Vector Adjacent Network
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

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

CVSS3 Base Score 3.5
CVSS3 Base Metrics CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact Low
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 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-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 Will not fix
Red Hat Enterprise Linux 5 xen Not affected

Acknowledgements

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

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