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

An error handling synthesized records could cause an assertion failure when using DNS64 with "break-dnssec yes;"

Disclosure Date: January 16, 2019 •
CVE-2017-3136 CVSS v3 Base Score: 5.9
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Description

A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were met. Affects BIND 9.8.0 –> 9.8.8-P1, 9.9.0 –> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 –> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 –> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 –> 9.9.9-S8.

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CVSS V3 Severity and Metrics
Base Score:
5.9 Medium
Impact Score:
3.6
Exploitability Score:
2.2
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
BIND 9 9.8.0 -> 9.8.8-P1, 9.9.0 -> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 -> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 -> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 -> 9.9.9-S8
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • debian,
  • isc,
  • netapp,
  • redhat

Products

  • bind,
  • bind 9.10.4,
  • bind 9.10.5,
  • bind 9.11.0,
  • bind 9.11.1,
  • bind 9.8.0,
  • bind 9.9.0,
  • bind 9.9.10,
  • bind 9.9.3,
  • data ontap edge -,
  • debian linux 8.0,
  • element software -,
  • enterprise linux desktop 6.0,
  • enterprise linux desktop 7.0,
  • enterprise linux server 6.0,
  • enterprise linux server 7.0,
  • enterprise linux server aus 7.3,
  • enterprise linux server aus 7.4,
  • enterprise linux server aus 7.6,
  • enterprise linux server eus 7.3,
  • enterprise linux server eus 7.4,
  • enterprise linux server eus 7.5,
  • enterprise linux server eus 7.6,
  • enterprise linux server tus 7.3,
  • enterprise linux server tus 7.6,
  • enterprise linux workstation 6.0,
  • enterprise linux workstation 7.0,
  • oncommand balance -
Technical Analysis