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

CVE-2018-8777

Disclosure Date: April 03, 2018
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker can pass a large HTTP request with a crafted header to WEBrick server or a crafted body to WEBrick server/handler and cause a denial of service (memory consumption).

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.0/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

  • canonical,
  • debian,
  • redhat,
  • ruby-lang

Products

  • debian linux 7.0,
  • debian linux 8.0,
  • debian linux 9.0,
  • enterprise linux 6.0,
  • enterprise linux 7.0,
  • enterprise linux 7.4,
  • enterprise linux 7.5,
  • enterprise linux 7.6,
  • ruby,
  • ruby 2.6.0,
  • ubuntu linux 14.04,
  • ubuntu linux 16.04,
  • ubuntu linux 17.10

References

Additional Info

Technical Analysis