01 Record

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

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.51% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 41.4% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2016-04-15 14:00Z10 YR AGO

Last updated

2024-08-06 00:10Z2 YR AGO

Reserved

2016-04-05

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

5cdf8fb45db3f58e7e7726172edde0e0b0d72fe46f0ae9e760960e95fb0aff0f

05 Affected products

VendorProductVersionsPlatforms

canonicalubuntu_linuxNot specified—

redhatenterprise_linuxNot specified—

xenxenNot specified—

06 References

xenbits.xen.orghttp://xenbits.xen.org/xsa/xsa174.patchx_refsource_CONFIRM
www.ubuntu.comUSN-3006-1http://www.ubuntu.com/usn/USN-3006-1vendor-advisoryx_refsource_UBUNTU
www.ubuntu.comUSN-3004-1http://www.ubuntu.com/usn/USN-3004-1vendor-advisoryx_refsource_UBUNTU
www.ubuntu.comUSN-3001-1http://www.ubuntu.com/usn/USN-3001-1vendor-advisoryx_refsource_UBUNTU
xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-174.htmlx_refsource_CONFIRM
www.ubuntu.comUSN-3005-1http://www.ubuntu.com/usn/USN-3005-1vendor-advisoryx_refsource_UBUNTU
www.securitytracker.com1035569http://www.securitytracker.com/id/1035569vdb-entryx_refsource_SECTRACK
www.ubuntu.comUSN-3049-1http://www.ubuntu.com/usn/USN-3049-1vendor-advisoryx_refsource_UBUNTU
www.debian.orgDSA-3607http://www.debian.org/security/2016/dsa-3607vendor-advisoryx_refsource_DEBIAN
www.ubuntu.comUSN-3002-1http://www.ubuntu.com/usn/USN-3002-1vendor-advisoryx_refsource_UBUNTU
www.ubuntu.comUSN-3050-1http://www.ubuntu.com/usn/USN-3050-1vendor-advisoryx_refsource_UBUNTU
www.ubuntu.comUSN-3007-1http://www.ubuntu.com/usn/USN-3007-1vendor-advisoryx_refsource_UBUNTU
www.ubuntu.comUSN-3003-1http://www.ubuntu.com/usn/USN-3003-1vendor-advisoryx_refsource_UBUNTU
www.securityfocus.com86068http://www.securityfocus.com/bid/86068vdb-entryx_refsource_BID

01 Record index

CVE-2016-3961

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2016-3961

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References