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

CVE-2018-19278

Disclosure Date: November 14, 2018
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1 allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a buffer size is supposed to match an expanded length but actually matches a compressed length.

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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

  • digium

Products

  • asterisk 15.0.0,
  • asterisk 15.1.0,
  • asterisk 15.1.2,
  • asterisk 15.1.3,
  • asterisk 15.1.4,
  • asterisk 15.1.5,
  • asterisk 15.2.0,
  • asterisk 15.2.1,
  • asterisk 15.2.2,
  • asterisk 15.3.0,
  • asterisk 15.4.0,
  • asterisk 15.4.1,
  • asterisk 15.5.0,
  • asterisk 15.6.0,
  • asterisk 15.6.1,
  • asterisk 16.0.0,
  • asterisk 16.0.1

Additional Info

Technical Analysis