CVE-2019-6471

Published: 19 June 2019

A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.

Priority

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package	Release	Status
bind9 Launchpad, Ubuntu, Debian	bionic	Released (1:9.11.3+dfsg-1ubuntu1.8)
	cosmic	Released (1:9.11.4+dfsg-3ubuntu5.4)
	disco	Released (1:9.11.5.P1+dfsg-1ubuntu2.5)
	trusty	Not vulnerable (code not present)
	upstream	Pending
	xenial	Not vulnerable (code not present)

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

References

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