Vulnerability Details : CVE-2016-7170
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.
Vulnerability category: Denial of service
Products affected by CVE-2016-7170
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-7170
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-7170
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
CWE ids for CVE-2016-7170
-
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-7170
-
http://www.openwall.com/lists/oss-security/2016/09/09/4
oss-security - CVE Request Qemu: vmware_vga: OOB stack memory access when processing svga commandMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/09/09/7
oss-security - Re: CVE Request Qemu: vmware_vga: OOB stack memory access when processing svga commandMailing List;Third Party Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01764.html
[Qemu-devel] [PATCH] vmsvga: correct bitmap and pixmap size checksPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateMailing List;Third Party Advisory
-
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
openSUSE-SU-2016:3237-1: moderate: Security update for qemuMailing List;Third Party Advisory
-
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=167d97a3def77ee2dbf6e908b0ecbfe2103977db
QEMU ยท GitLab
-
http://www.securityfocus.com/bid/92904
QEMU CVE-2016-7170 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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