Bug 1510569 (CVE-2018-1000003)

Summary:	CVE-2018-1000003 pdns: Improper validation of wildcard synthesized NSEC records
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ms, ruben, sander, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	pdns 4.1.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-01-24 09:59:53 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:
Bug Depends On:	1538010, 1538011
Bug Blocks:

Description Adam Mariš 2017-11-07 16:54:24 UTC

A vulnerability in DNSSEC implementation of PowerDNS was found. Processing of wildcard synthesized NSEC records may result in improper validation for non-existance in some implementations of DNSSEC. While synthesis of NSEC records is allowed by RFC4592, the synthesized owner names should not be used in the NSEC processing.

Comment 1 Adam Mariš 2017-11-07 16:54:28 UTC

Acknowledgments:

Name: Ralph Dolmans (NLnet Labs), Karst Koymans (University of Amsterdam)

Comment 3 Adam Mariš 2018-01-24 09:57:53 UTC

External References:

https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-01.html

Comment 4 Adam Mariš 2018-01-24 09:58:08 UTC

Created pdns tracking bugs for this issue:

Affects: epel-all [bug 1538010]
Affects: fedora-all [bug 1538011]