CVE-2016-4454

Impact:
Moderate
Public Date:
2016-05-30
CWE:
CWE-125
Bugzilla:
1336429: CVE-2016-4454 Qemu: display: vmsvga: out-of-bounds read in vmsvga_fifo_read_raw() routine
Quick Emulator(Qemu) built with the VMware-SVGA "chipset" emulation support is vulnerable to an information disclosure issue. It could occur while processing VGA commands via its FIFO buffer. A privileged user inside guest could use this flaw to leak host memory bytes or crash the Qemu process resulting in DoS.

Find out more about CVE-2016-4454 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:P/I:N/A:P
Access Vector Adjacent Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Partial

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

Affected Packages State

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

Acknowledgements

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

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