Bug 1464968 (CVE-2017-7496)

Summary:	CVE-2017-7496 fedora-arm-installer: Unsafe mount in /tmp allows privilege escalation
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jonc_mailbox, pbrobinson, pwhalen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2018-12-04 01:56:49 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:	1464969
Bug Blocks:

Description Adam Mariš 2017-06-26 10:16:08 UTC

Local privileges escalation is possible because of unsafe creation of directories in /tmp as a target for mount without checking a return value indicating if the operation failed or succeeded.

Upstream bug:

https://pagure.io/arm-image-installer/pull-request/10

Comment 1 Adam Mariš 2017-06-26 10:16:10 UTC

Acknowledgments:

Name: Michael Scherer (Red Hat)

Comment 2 Adam Mariš 2017-06-26 10:16:35 UTC

Created fedora-arm-installer tracking bugs for this issue:

Affects: fedora-all [bug 1464969]