CVE-2016-3961
MEDIUM severity · CVSS 5.5 · Improper input validation
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.debian.org/security/2016/dsa-3607
- http://www.securityfocus.com/bid/86068
- http://www.securitytracker.com/id/1035569Advisory
- http://www.ubuntu.com/usn/USN-3001-1Advisory
- http://www.ubuntu.com/usn/USN-3002-1Advisory
- http://www.ubuntu.com/usn/USN-3003-1Advisory
- http://www.ubuntu.com/usn/USN-3004-1Advisory
- http://www.ubuntu.com/usn/USN-3005-1Advisory