Bug 1745648 (CVE-2019-15540)

Summary:	CVE-2019-15540 libmirage: heap based buffer overflow in filters/filter-cso/filter-stream.c leads to privileged access
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jmoskovc
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:	2019-08-26 19:07:19 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1745649
Bug Blocks:

Description Dhananjay Arunesh 2019-08-26 14:58:19 UTC

A vulnerability was found in filters/filter-cso/filter-stream.c in the CSO filter in libMirage 3.2.2 in CDemu does not validate the part size, triggering a heap-based buffer overflow that can lead to root access by a local Linux user.

Reference:
https://gist.github.com/andreafioraldi/baa79cd78131888d98d6ba680d5f514e
https://sourceforge.net/p/cdemu/code/ci/0e9292c9aa34bf545f43f7efe5f0b94faba94962/

Comment 1 Dhananjay Arunesh 2019-08-26 14:58:37 UTC

Created libmirage tracking bugs for this issue:

Affects: fedora-all [bug 1745649]

Comment 2 Product Security DevOps Team 2019-08-26 19:07:19 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.