CVE-2016-9921

Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.
References
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.8.0:rc1:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.8.0:rc2:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

History

13 Feb 2023, 04:50

Type Values Removed Values Added
Summary CVE-2016-9921 CVE-2016-9922 Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.
References
  • {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334398', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334398', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/security/cve/CVE-2016-9921', 'name': 'https://access.redhat.com/security/cve/CVE-2016-9921', 'tags': [], 'refsource': 'MISC'}

02 Feb 2023, 15:17

Type Values Removed Values Added
References
  • (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1334398 -
  • (MISC) https://access.redhat.com/security/cve/CVE-2016-9921 -
Summary Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS. CVE-2016-9921 CVE-2016-9922 Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy

04 Aug 2021, 17:15

Type Values Removed Values Added
CPE cpe:2.3:a:redhat:openstack:9.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:8.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*

Information

Published : 2016-12-23 22:59

Updated : 2023-12-10 12:01


NVD link : CVE-2016-9921

Mitre link : CVE-2016-9921

CVE.ORG link : CVE-2016-9921


JSON object : View

Products Affected

redhat

  • openstack
  • enterprise_linux
  • virtualization

qemu

  • qemu

debian

  • debian_linux
CWE
CWE-369

Divide By Zero