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CVE-2017-3136

Published: 12 April 2017

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.

Priority

Medium

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
bind9
Launchpad, Ubuntu, Debian
precise
Released (1:9.8.1.dfsg.P1-4ubuntu0.22)
trusty
Released (1:9.9.5.dfsg-3ubuntu0.14)
upstream Needs triage

xenial
Released (1:9.10.3.dfsg.P4-8ubuntu1.6)
yakkety
Released (1:9.10.3.dfsg.P4-10.1ubuntu1.6)
zesty
Released (1:9.10.3.dfsg.P4-10.1ubuntu5)

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H