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

CVE-2015-6855

Disclosure Date: November 06, 2015
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • arista,
  • canonical,
  • debian,
  • fedoraproject,
  • qemu,
  • suse

Products

  • debian linux 7.0,
  • debian linux 8.0,
  • debian linux 9.0,
  • eos -,
  • fedora 21,
  • fedora 22,
  • fedora 23,
  • linux enterprise desktop 12,
  • linux enterprise server 12,
  • qemu,
  • ubuntu linux 12.04,
  • ubuntu linux 14.04,
  • ubuntu linux 15.04

References

Additional Info

Technical Analysis