Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2016-9382

Disclosure Date: January 23, 2017
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.

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CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • citrix,
  • xen

Products

  • xen 4.0.0,
  • xen 4.0.1,
  • xen 4.0.2,
  • xen 4.0.3,
  • xen 4.0.4,
  • xen 4.1.0,
  • xen 4.1.1,
  • xen 4.1.2,
  • xen 4.1.3,
  • xen 4.1.4,
  • xen 4.1.5,
  • xen 4.1.6.1,
  • xen 4.2.0,
  • xen 4.2.1,
  • xen 4.2.2,
  • xen 4.2.3,
  • xen 4.2.4,
  • xen 4.2.5,
  • xen 4.3.0,
  • xen 4.3.1,
  • xen 4.3.2,
  • xen 4.3.3,
  • xen 4.3.4,
  • xen 4.4.0,
  • xen 4.4.1,
  • xen 4.4.2,
  • xen 4.4.3,
  • xen 4.4.4,
  • xen 4.5.0,
  • xen 4.5.1,
  • xen 4.5.2,
  • xen 4.5.3,
  • xen 4.5.5,
  • xen 4.6.0,
  • xen 4.6.1,
  • xen 4.6.3,
  • xen 4.6.4,
  • xen 4.7.0,
  • xen 4.7.1,
  • xenserver 6.0.2,
  • xenserver 6.2.0,
  • xenserver 6.5,
  • xenserver 7.0

Additional Info

Technical Analysis