Bug 1670224 (CVE-2018-20743)

Summary:	CVE-2018-20743 mumble: instability and crash due to message flood
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	chkr, j.golderer, johnhatestrash, rdieter
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:	2019-06-10 10:46:36 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:	1670225
Bug Blocks:

Description Laura Pardo 2019-01-28 23:57:02 UTC

murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.


References:
https://bugs.debian.org/919249
https://github.com/mumble-voip/mumble/issues/3505

Upstream Patch:
https://github.com/mumble-voip/mumble/pull/3510
https://github.com/mumble-voip/mumble/pull/3512

Comment 1 Laura Pardo 2019-01-28 23:58:17 UTC

Created mumble tracking bugs for this issue:

Affects: fedora-all [bug 1670225]

Comment 2 Product Security DevOps Team 2019-06-10 10:46:36 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.