Bug 1279377 (CVE-2015-5311)

Summary:	CVE-2015-5311 pdns: packet parsing bug can lead to crashes (DoS)
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	mstevens, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	PowerDNS 3.4.7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-21 00:48:29 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:	1279492, 1279493
Bug Blocks:

Description Martin Prpič 2015-11-09 10:20:57 UTC

The following flaw was found in PowerDNS Authoritative Server:

A bug was found using afl-fuzz in our packet parsing code. This bug, when exploited, this causes an assertion error and consequent termination of the the pdns_server process, causing a Denial of Service.

When the PowerDNS Authoritative Server is run inside the guardian (--guardian), or inside a supervisor like supervisord or systemd, it will be automatically restarted, limiting the impact to a somewhat degraded service.

PowerDNS Authoritative Server 3.4.4 - 3.4.6 are affected. No other versions are affected. The PowerDNS Recursor is not affected.

PowerDNS Authoritative Server 3.4.7 contains a fix to this issue.

Comment 1 Martin Prpič 2015-11-09 15:03:10 UTC

Created pdns tracking bugs for this issue:

Affects: fedora-all [bug 1279492]
Affects: epel-all [bug 1279493]

Comment 2 Martin Prpič 2015-11-09 15:03:52 UTC

Upstream patches:

https://downloads.powerdns.com/patches/2015-03/

External References:

https://doc.powerdns.com/md/security/powerdns-advisory-2015-03/

Comment 3 Morten Stevens 2015-11-09 15:26:50 UTC

(In reply to Martin Prpic from comment #1)

> Affects: epel-all [bug 1279493]

Only EPEL-7 is affected.

Comment 4 Fedora Update System 2015-11-17 15:50:36 UTC

pdns-3.4.7-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2015-11-17 18:22:21 UTC

pdns-3.4.7-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2015-11-20 23:23:58 UTC

pdns-3.4.7-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2015-11-24 19:57:38 UTC

pdns-3.4.7-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.