CVEvulnerability
CVE-2016-9921
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2016-12-23
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-369
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.
Affected configurations
• qemu qemu (<= 2.7.1)
• qemu qemu 2.8.0
• debian debian linux 8.0
• redhat openstack 6.0
• redhat openstack 7.0
• redhat openstack 8
• redhat openstack 9
• redhat openstack 10
• redhat openstack 11
• redhat virtualization 4.0
Related
Weakness · CWE (1)
- CWE-369 Divide By Zero weakness
References
- http://www.openwall.com/lists/oss-security/2016/12/09/1 Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/94803 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2392 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2408 Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201701-49 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/09/1 Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/94803 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2392 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2408 Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201701-49 Third Party Advisory