CVE-2016-9922: Divide by Zero
First published: Mon Mar 27 2017(Updated: )
The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU KVM | <=2.7.1 | |
| QEMU KVM | =2.8.0-rc0 | |
| QEMU KVM | =2.8.0-rc1 | |
| QEMU KVM | =2.8.0-rc2 |
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Reference Links
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=4299b90e9ba9ce5ca9024572804ba751aa1a7e70
- http://www.openwall.com/lists/oss-security/2016/12/09/1
- http://www.securityfocus.com/bid/94803
- https://access.redhat.com/errata/RHSA-2017:2392
- https://access.redhat.com/errata/RHSA-2017:2408
- https://bugzilla.redhat.com/show_bug.cgi?id=1334398
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html
- agent/type
- agent/references
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/author
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/qemu
- canonical/qemu kvm
- version/qemu kvm/2.7.1
- version/qemu kvm/2.8.0-rc0
- version/qemu kvm/2.8.0-rc1
- version/qemu kvm/2.8.0-rc2