CVE-2016-7170 — Improper Validation of Array Index in Qemu

CWE-129 — Improper Validation of Array IndexCWE-121 — Stack-based Buffer Overflow11 documents7 sources
Severity
4.4MEDIUMNVD
OSV5.5
EPSS
0.1%
top 77.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
QemuDebian QemuDebian Linux+1 more
Timeline
PublishedDec 10
Latest updateMay 13

Description

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HExploitability: 0.8 | Impact: 3.6

Affected Packages5 packages

▶debiandebian/qemu< qemu 1:2.8+dfsg-1 (bookworm)
▶Debianqemu/qemu< 1:2.8+dfsg-1+3
▶Ubuntuqemu/qemu< 2.0.0+dfsg-2ubuntu1.30+1
▶NVDqemu/qemu2.7.1
▶NVDopensuse/leap42.2

Also affects: Debian Linux 8.0

Patches

Patch: lists.gnu.org ↗Patch: lists.gnu.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-g884-2vqj-jrfw: The vmsvga_fifo_run function in hw/display/vmware_vga↗2022-05-13
▶
OSV
CVE-2016-7170: The vmsvga_fifo_run function in hw/display/vmware_vga↗2016-12-10
▶
OSV
qemu, qemu-kvm vulnerabilities↗2016-11-09
▶

📋Vendor Advisories

4
Red Hat
ntp: Ephemeral association time spoofing additional protection↗2018-02-27
▶
Ubuntu
QEMU vulnerabilities↗2016-11-09
▶
Red Hat
Qemu: vmware_vga: OOB stack memory access when processing svga command↗2016-09-08
▶
Debian
CVE-2016-7170: qemu - The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU (aka Quick Emula...↗2016
▶

💬Community

3
Bugzilla
CVE-2018-7170 ntp: Ephemeral association time spoofing additional protection↗2018-02-28
▶
Bugzilla
CVE-2016-7170 Qemu: vmware_vga: OOB stack memory access when processing svga command↗2016-09-09
▶
Bugzilla
CVE-2016-7170 Qemu: vmware_vga: OOB stack memory access when processing svga command [fedora-all]↗2016-09-09
▶