Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.7.1 |
Related Weaknesses (CWE)
References
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=4299b90e9ba9ce5ca90245728
- http://www.openwall.com/lists/oss-security/2016/12/09/1Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/94803Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2408Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1334398Issue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.htmlPatchVendor Advisory
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=4299b90e9ba9ce5ca90245728
- http://www.openwall.com/lists/oss-security/2016/12/09/1Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/94803Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2408Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1334398Issue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlThird Party Advisory
FAQ
What is CVE-2016-9922?
CVE-2016-9922 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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-ze...
How severe is CVE-2016-9922?
CVE-2016-9922 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9922?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu.