Bug 1987001 (CVE-2021-36754)

Summary:	CVE-2021-36754 pdns: specific query crashes Authoritative Server
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ms, ruben, sander
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-07-28 19:07:00 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:	1987002, 1987003
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-07-28 16:57:46 UTC

PowerDNS Authoritative Server 4.5.0 (and the alpha/beta/rc1/rc2 prereleases that came before it) will crash with an uncaught out of bounds exception if it receives a query with QTYPE 65535. The offending code was not present in earlier versions, and they are not affected.

Reference:
https://www.openwall.com/lists/oss-security/2021/07/26/2

Comment 1 Guilherme de Almeida Suckevicz 2021-07-28 16:58:10 UTC

Created pdns tracking bugs for this issue:

Affects: epel-all [bug 1987002]
Affects: fedora-all [bug 1987003]

Comment 2 Product Security DevOps Team 2021-07-28 19:07:00 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.