CVE-2013-5661

Publication date 5 November 2019

Last updated 25 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

Cache Poisoning issue exists in DNS Response Rate Limiting.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bind9	13.10 saucy	Ignored end of life
	13.04 raring	Ignored end of life
	12.10 quantal	Ignored end of life
	12.04 LTS precise	Ignored end of life
	10.04 LTS lucid	Ignored end of life

Notes

seth-arnold

This appears to be about the tradeoff of providing service to clients and preventing the massive DDoS attacks using high-speed DNS servers. This seems like an unfixable issue.

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.9 · Medium

Base metrics

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

Scores

Parameter	Value
Base score	5.9 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N