Bug 514481

Summary:	BIND denial of service (server crash) caused by receipt of a specific remote dynamic update message
Product:	Red Hat Enterprise Linux 5	Reporter:	Stefan Neufeind <redhat>
Component:	bind	Assignee:	Adam Tkac <atkac>
Status:	CLOSED DUPLICATE	QA Contact:	BaseOS QE <qe-baseos-auto>
Severity:	urgent	Docs Contact:
Priority:	low
Version:	5.3	CC:	ovasik, reed
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-07-29 15:29:53 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Stefan Neufeind 2009-07-29 10:18:02 UTC

https://www.isc.org/node/474

Receipt of a specially-crafted dynamic update message to a zone for which the server is the master may cause BIND 9 servers to exit. Testing indicates that the attack packet has to be formulated against a zone for which that machine is a master. Launching the attack against slave zones does not trigger the assert.

This vulnerability affects all servers that are masters for one or more zones – it is not limited to those that are configured to allow dynamic updates. Access controls will not provide an effective workaround.

Comment 1 Stefan Neufeind 2009-07-29 10:26:28 UTC

Duplicate of #514292.
(Unfortunately it seems I can't update the status of my own ticket to duplicate?)

Comment 2 Adam Tkac 2009-07-29 15:29:53 UTC


*** This bug has been marked as a duplicate of bug 514292 ***