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High severity · published Jan 23, 2017
CVE-2016-9381
Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% 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 · source: NVD
XE
Xenserver · Citrix
6.0.2; 6.2.0; 6.5; 7.0 · source: NVD
Affected product
XE
Xenserver
Citrix
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-9381
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-9381
Third Party Advisory
http://www.securityfocus.com/bid/94476
Third Party Advisory
http://www.securitytracker.com/id/1037344
Third Party Advisory
http://xenbits.xen.org/xsa/advisory-197.html
Third Party Advisory
https://security.gentoo.org/glsa/201612-56
Third Party Advisory
https://support.citrix.com/article/CTX218775
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