CVE-2016-7170: Out-of-bounds Read
First published: Sat Dec 10 2016(Updated: )
The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors related to cursor.mask[] and cursor.image[] array sizes when processing a DEFINE_CURSOR svga command.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU KVM | <=2.7.1 | |
| Debian GNU/Linux | =8.0 | |
| openSUSE | =42.2 |
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Reference Links
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=167d97a3def77ee2dbf6e908b0ecbfe2103977db
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
- http://www.openwall.com/lists/oss-security/2016/09/09/4
- http://www.openwall.com/lists/oss-security/2016/09/09/7
- http://www.securityfocus.com/bid/92904
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01764.html
Frequently Asked Questions
What is the severity of CVE-2016-7170?
CVE-2016-7170 has a severity rating that indicates it can lead to a denial of service.
How do I fix CVE-2016-7170?
To fix CVE-2016-7170, users should update to a version of QEMU that is greater than or equal to 2.7.2.
What systems are affected by CVE-2016-7170?
CVE-2016-7170 affects QEMU versions up to 2.7.1 and specific versions of Debian and openSUSE.
What type of vulnerability is CVE-2016-7170?
CVE-2016-7170 is a local denial of service vulnerability caused by out-of-bounds write operations.
Can CVE-2016-7170 be exploited remotely?
CVE-2016-7170 cannot be exploited remotely as it requires local guest OS administrator access.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/references
- agent/weakness
- agent/last-modified-date
- agent/remedy
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/qemu
- canonical/qemu kvm
- version/qemu kvm/2.7.1
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/8.0
- vendor/opensuse
- canonical/opensuse
- version/opensuse/42.2