Medium severity · published Dec 29, 2016
CVE-2016-9846
QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QE
Qemu · Qemu
through 2.7.1; 2.8.0; 2.8.0; 2.8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-9846
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-9846
Mailing List
http://www.openwall.com/lists/oss-security/2016/12/05/18
Mailing List
http://www.openwall.com/lists/oss-security/2016/12/05/23
Third Party Advisory
http://www.securityfocus.com/bid/94765
Patch
https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html
Third Party Advisory
https://security.gentoo.org/glsa/201701-49
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