vulnwire
8.2high

CVE-2016-7093

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
8.2
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 37%
Public exploits
0
none known

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.

Exploit prediction (EPSS)

0.43% probability of exploitation in the next 30 days, higher than 37% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.2CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

  • xenbits.xen.org /xsa/advisory-186.html · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/92865 · vdb-entry, x_refsource_BID, x_transferred
  • xenbits.xen.org /xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch · x_refsource_CONFIRM, x_transferred
  • support.citrix.com /article/CTX216071 · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1036752 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • security.gentoo.org /glsa/201611-09 · vendor-advisory, x_refsource_GENTOO, x_transferred

Sources

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