Medium severity · published Jan 23, 2017
CVE-2016-9385
The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging…
6.0
CVSS
0.4%
EPSS
No
On KEV
Description
The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.4.4; 4.5.0; +10 more · source: NVD
XE
Xenserver · Citrix
6.0.2; 6.2.0; 6.5; 7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-9385
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-9385
Third Party Advisory
http://www.securityfocus.com/bid/94472
Third Party Advisory
http://www.securitytracker.com/id/1037342
Patch
http://xenbits.xen.org/xsa/advisory-193.html
security.gentoo.org
https://security.gentoo.org/glsa/201612-56
Patch
https://support.citrix.com/article/CTX218775
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