Bug 1601019 – CVE-2018-14036 accountsservice: insufficient path check in user_change_icon_file_authorized_cb() in user.c

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Bug 1601019 - (CVE-2018-14036) CVE-2018-14036 accountsservice: insufficient path check in user_change_icon_file_authorized_cb() in user.c

Summary:	CVE-2018-14036 accountsservice: insufficient path check in user_change_icon_f...

Status:	NEW

Aliases:	CVE-2018-14036

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=moderate,public=20180713,repor...
Keywords:	Security

Duplicates:	1597495 (view as bug list)
Depends On:	1597499 1601020 1602918 1601021
Blocks:	1601022
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Reported:	2018-07-13 11:19 EDT by Pedro Sampaio
Modified:	2018-08-31 17:54 EDT (History)
CC List:	4 users (show)

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Description Pedro Sampaio 2018-07-13 11:19:48 EDT

Directory Traversal with ../ sequences occurs in AccountsService before 0.6.50 because of an insufficient path check in user_change_icon_file_authorized_cb() in user.c.

Upstream bug:

https://bugs.freedesktop.org/show_bug.cgi?id=107085

Upstream patch:

https://cgit.freedesktop.org/accountsservice/commit/?id=f9abd359f71a5bce421b9ae23432f539a067847a

References:

http://www.openwall.com/lists/oss-security/2018/07/02/2

Comment 1 Pedro Sampaio 2018-07-13 11:20:14 EDT

Created accountsservice tracking bugs for this issue:

Affects: fedora-all [bug 1601020]

Comment 3 Tomas Hoger 2018-07-13 15:17:39 EDT

*** Bug 1597495 has been marked as a duplicate of this bug. ***

Comment 6 Pedro Yóssis Silva Barbosa 2018-07-18 16:07:56 EDT

The vulnerability would trigger an information disclosure (e.g., file read) concern. No vulnerable third party applications were found so far.

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