CVE-2020-8618

Publication date 17 June 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bind9	20.04 LTS focal	Fixed 1:9.16.1-0ubuntu2.2
	19.10 eoan	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

alexmurray

Affects version 9.16.0 through 9.16.3

Severity score breakdown

Parameter	Value
Base score	4.9 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-4399-1
Bind vulnerabilities
17 June 2020