VulnerabilityModified
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 crash) by attempting to access a hugetlbfs mapped area.
MEDIUM 5.5EPSS 0.51%
Does this matter?
Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own.
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 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- canonical/ubuntu linux · xen/xen
- Source
- cve@mitre.org
References
- http://www.debian.org/security/2016/dsa-3607
- http://www.securityfocus.com/bid/86068
- http://www.securitytracker.com/id/1035569Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3001-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3002-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3003-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3004-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3005-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3006-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3007-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3049-1
- http://www.ubuntu.com/usn/USN-3050-1
- http://xenbits.xen.org/xsa/advisory-174.htmlVendor Advisory
- http://xenbits.xen.org/xsa/xsa174.patchPatch
- http://www.debian.org/security/2016/dsa-3607
- http://www.securityfocus.com/bid/86068
- http://www.securitytracker.com/id/1035569Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3001-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3002-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3003-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3004-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3005-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3006-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3007-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3049-1
- http://www.ubuntu.com/usn/USN-3050-1
- http://xenbits.xen.org/xsa/advisory-174.htmlVendor Advisory
- http://xenbits.xen.org/xsa/xsa174.patchPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.