xen: hugetlbfs use may crash PV Linux guests (XSA-174)
Published Apr 15, 2016
5.5
MEDIUMCVSS 3.0
EPSS 0.51%
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.
Affected products
No data.
Configuration 1
- 14.04
- 15.10
- 16.04
No data.
Red Hat Enterprise Linux 5
xen
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | xen | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:L/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.51% (0.00510) | 41.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.51% (0.00510) | 39.19th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.13% (0.00126) | 28.66th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.44% (0.01444) | 68.80th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.13% (0.00126) | 29.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00064) | 30.08th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.06% (0.00064) | 28.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00064) | 26.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (18)
- http://www.debian.org/security/2016/dsa-3607 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/86068 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1035569 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3001-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3002-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3003-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3004-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3005-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3006-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3007-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3049-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3050-1 vendor-advisoryx_refsource_UBUNTU
- http://xenbits.xen.org/xsa/advisory-174.html x_refsource_CONFIRMVendor Advisory
- http://xenbits.xen.org/xsa/xsa174.patch x_refsource_CONFIRMPatch
- https://access.redhat.com/security/cve/CVE-2016-3961 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1323956 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-3961
- https://www.cve.org/CVERecord?id=CVE-2016-3961
Change history (0)
No recorded changes yet.