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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
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.
Metrics
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CVE Modified by Red Hat, Inc.5/14/2024 12:10:01 AM
Action
Type
Old Value
New Value
CVE Modified by Red Hat, Inc.2/12/2023 11:50:17 PM
Action
Type
Old Value
New Value
Removed
CVSS V2
Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
Removed
CVSS V3
Red Hat, Inc. AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
Changed
Description
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.
CVE Modified by Red Hat, Inc.2/02/2023 10:17:15 AM
Action
Type
Old Value
New Value
Added
CVSS V2
Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
Added
CVSS V3
Red Hat, Inc. AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
Changed
Description
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
AND
OR
*cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:8.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:9.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Changed
CPE Configuration
OR
*cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
OR
*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 2.7.1
*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:*:*:*:*:*:*
Removed
CVSS V3
NIST AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Added
CVSS V3.1
NIST AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2016/12/09/1 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/09/1 Mailing List, Patch, Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2017:2392 No Types Assigned
https://access.redhat.com/errata/RHSA-2017:2392 Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2017:2408 No Types Assigned
https://access.redhat.com/errata/RHSA-2017:2408 Third Party Advisory
Changed
Reference Type
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html No Types Assigned
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html Mailing List, Third Party Advisory
Changed
Reference Type
https://security.gentoo.org/glsa/201701-49 No Types Assigned
https://security.gentoo.org/glsa/201701-49 Third Party Advisory
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