Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
0

CVE-2015-2756

Disclosure Date: April 01, 2015
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.

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CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Vendors

  • canonical,
  • debian,
  • fedoraproject,
  • xen

Products

  • debian linux 7.0,
  • debian linux 8.0,
  • fedora 20,
  • fedora 21,
  • ubuntu linux 12.04,
  • ubuntu linux 14.04,
  • ubuntu linux 14.10,
  • ubuntu linux 15.04,
  • xen 4.3.0,
  • xen 4.3.1,
  • xen 4.3.2,
  • xen 4.4.0,
  • xen 4.4.1,
  • xen 4.5.0
Technical Analysis