Bug 1598493 (CVE-2018-13054)

Summary:	CVE-2018-13054 cinnamon: privilege escalation in cinnamon-settings-users.py GUI
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	alt-gtk-de-sig, leigh123linux
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2019-06-10 10:31:54 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1598494, 1598495
Bug Blocks:

Description Laura Pardo 2018-07-05 15:50:40 UTC

A flaw was found in Cinnamon 1.9.2 through 3.8.6. The cinnamon-settings-users.py GUI runs as root and allows configuration of (for example) other users' icon files in _on_face_browse_menuitem_activated and _on_face_menuitem_activated. These icon files are written to the respective user's $HOME/.face location. If an unprivileged user prepares a symlink pointing to an arbitrary location, then this location will be overwritten with the icon content.


References:
https://bugzilla.suse.com/show_bug.cgi?id=1083067

Patch:
https://github.com/linuxmint/Cinnamon/pull/7683

Comment 1 Laura Pardo 2018-07-05 15:51:14 UTC

Created cinnamon tracking bugs for this issue:

Affects: epel-7 [bug 1598495]
Affects: fedora-all [bug 1598494]

Comment 2 Product Security DevOps Team 2019-06-10 10:31:54 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.