Bug 1332111 (CVE-2016-4414)

Summary:	CVE-2016-4414 quassel: IRC denial of service
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	admiller, lupinix.fedora, rdieter, rosser.bjr, smparrish, s
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	quassel 0.12.4	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-05-07 21:24:13 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:	1332112, 1332113
Bug Blocks:

Description Andrej Nemec 2016-05-02 09:07:52 UTC

It was found that quasselcore is vulnerable to a denial of service
attack by unauthenticated clients. The protocol negotiation did not
take into account lack of a match, in which case
PeerFactory::createPeer returns a nullptr, which is immediately
dereferenced.

References:

http://seclists.org/oss-sec/2016/q2/174

Issue introduced in commit:

https://github.com/quassel/quassel/commit/d1bf207

Upstream fix:

https://github.com/quassel/quassel/commit/e678873

Comment 1 Andrej Nemec 2016-05-02 09:08:18 UTC

Created quassel tracking bugs for this issue:

Affects: epel-7 [bug 1332112]
Affects: fedora-all [bug 1332113]

Comment 2 Fedora Update System 2016-05-06 19:24:34 UTC

quassel-0.12.4-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2016-05-06 19:51:24 UTC

quassel-0.12.4-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2016-05-07 11:49:17 UTC

quassel-0.12.4-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2016-05-10 14:41:41 UTC

quassel-0.12.4-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.