CVE-2016-9846
medium
CVSS v3
6.5
CVSS v2
4.9
VIR risk
6.5
Description
QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.
Predictions
Exploit likelihood
65%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-9846
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-9846.html
Vendor advisory: secalert@redhat.com — https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 1:2.8+dfsg-1 |
| debian | bullseye | fixed | 1:2.8+dfsg-1 |
| debian | forky | fixed | 1:2.8+dfsg-1 |
| debian | sid | fixed | 1:2.8+dfsg-1 |
| debian | trixie | fixed | 1:2.8+dfsg-1 |
References
- http://www.openwall.com/lists/oss-security/2016/12/05/18
- http://www.openwall.com/lists/oss-security/2016/12/05/23
- http://www.securityfocus.com/bid/94765
- https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html
- https://security.gentoo.org/glsa/201701-49
- https://www.suse.com/security/cve/CVE-2016-9846.html
- https://security-tracker.debian.org/tracker/CVE-2016-9846
CWEs
CWE-119
Verify integrity in audit chain (admin only). AS-IS.