CVE-2016-7170
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 42.2 | Affected | โ |
| โ | Affected | โ |
Debian Mixed 6 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1:2.8+dfsg-1 |
| sid | Fixed | 1:2.8+dfsg-1 |
| forky | Fixed | 1:2.8+dfsg-1 |
| bullseye | Fixed | 1:2.8+dfsg-1 |
| bookworm | Fixed | 1:2.8+dfsg-1 |
| 8.0 | Affected | โ |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| qemu | qemu | {"endIncluding":"2.7.1"} | |
References
- 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
- https://www.suse.com/security/cve/CVE-2016-7170.html
- https://security-tracker.debian.org/tracker/CVE-2016-7170
CWEs
CWE-129
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.