vulnwire
5.5med

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…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 44%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.51% probability of exploitation in the next 30 days, higher than 44% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.02.1AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • xenbits.xen.org /xsa/xsa174.patch · x_refsource_CONFIRM, x_transferred
  • ubuntu.com /usn/USN-3006-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3004-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3001-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • xenbits.xen.org /xsa/advisory-174.html · x_refsource_CONFIRM, x_transferred
  • ubuntu.com /usn/USN-3005-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • securitytracker.com /id/1035569 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • ubuntu.com /usn/USN-3049-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • debian.org /security/2016/dsa-3607 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • ubuntu.com /usn/USN-3002-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3050-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3007-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • ubuntu.com /usn/USN-3003-1 · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • securityfocus.com /bid/86068 · vdb-entry, x_refsource_BID, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.