Bug 1588900 (CVE-2017-7653)

Summary:	CVE-2017-7653 mosquitto: Improper handling of UTF-8 strings allows malicious clients to cause other clients to disconnect
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	linville, mail, richmattes
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:	2019-01-22 09:49:12 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:	1588901, 1588902
Bug Blocks:

Description Sam Fowler 2018-06-08 04:14:19 UTC

The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.


Upstream Bug:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113

Comment 1 Sam Fowler 2018-06-08 04:14:40 UTC

Created mosquitto tracking bugs for this issue:

Affects: epel-7 [bug 1588901]
Affects: fedora-all [bug 1588902]