Bug 1715352 (CVE-2019-6469)

Summary:	CVE-2019-6469 bind: an error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure leading to DoS
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anon.amish, extras-orphan, jpopelka, mruprich, msehnout, pemensik, pzhukov, thozza, vonsch, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Last Closed:	2019-06-04 05:01:32 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1715353

Description Marian Rehak 2019-05-30 07:44:07 UTC

This issue only affects BIND Supported Preview Edition version 9.10.5-S1 -> 9.11.6-S1! An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs.

External References:

https://kb.isc.org/docs/cve-2019-6469

Comment 1 Huzaifa S. Sidhpurwala 2019-06-04 05:01:35 UTC

Statement:

This flaw only affects the BIND Supported Preview Edition version. Packages shipped with Red Hat Enterprise Linux are not affected by this flaw.