Medium severity · published Apr 15, 2016
CVE-2016-3961
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS…
5.5
CVSS
0.5%
EPSS
No
On KEV
Description
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UL
Ubuntu Linux · Canonical
14.04; 15.10; 16.04 · source: NVD
XE
Xen · Xen
through 4.5.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-3961
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-3961
www.debian.org
http://www.debian.org/security/2016/dsa-3607
www.securityfocus.com
http://www.securityfocus.com/bid/86068
Third Party Advisory
http://www.securitytracker.com/id/1035569
Third Party Advisory
http://www.ubuntu.com/usn/USN-3001-1
Third Party Advisory
http://www.ubuntu.com/usn/USN-3002-1
Third Party Advisory
http://www.ubuntu.com/usn/USN-3003-1
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