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...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-14036
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
: 1597495 (view as bug list)
Depends On: 1597499 1601020 1601021 1602918
Blocks: 1601022
TreeView+ depends on / blocked
 
Reported: 2018-07-13 15:19 UTC by Pedro Sampaio
Modified: 2021-10-25 09:46 UTC (History)
4 users (show)

Fixed In Version:
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Last Closed: 2021-10-25 09:46:41 UTC
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Description Pedro Sampaio 2018-07-13 15:19:48 UTC 
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 15:20:14 UTC 
Created accountsservice tracking bugs for this issue:

Affects: fedora-all [bug 1601020]
Comment 3 Tomas Hoger 2018-07-13 19:17:39 UTC 
*** Bug 1597495 has been marked as a duplicate of this bug. ***
Comment 6 Pedro Yóssis Silva Barbosa 2018-07-18 20:07:56 UTC 
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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