CVE-2016-2088

Publication date 9 March 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

resolver.c in named in ISC BIND 9.10.x before 9.10.3-P4, when DNS cookies are enabled, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a malformed packet with more than one cookie option.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bind9	15.10 wily	Not affected
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Not affected

Notes

mdeslaur

9.10.x only

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.8 · Medium

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	6.8 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H