ESB-2018.1094 - [Linux][RedHat] xdg-user-dirs: Access confidential data - Existing account 2018-04-11

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1094
              Low: xdg-user-dirs security and bug fix update
                               11 April 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           xdg-user-dirs
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
                   Red Hat Enterprise Linux WS/Desktop 7
                   Linux variants
Impact/Access:     Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-15131  

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2018:0842

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Red Hat. It is recommended that administrators
         running xdg-user-dirs check for an updated version of the software 
         for their operating system.

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                   Red Hat Security Advisory

Synopsis:          Low: xdg-user-dirs security and bug fix update
Advisory ID:       RHSA-2018:0842-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:0842
Issue date:        2018-04-10
CVE Names:         CVE-2017-15131 
=====================================================================

1. Summary:

An update for xdg-user-dirs is now available for Red Hat Enterprise Linux
7.

Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x

3. Description:

xdg-user-dirs is a tool to create and configure default desktop user
directories such as the Music and the Desktop directories.

Security Fix(es):

* xdg-user-dirs, gnome-session: Xsession creation of XDG user directories
does not honor system umask policy (CVE-2017-15131)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.5 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1412762 - Xsession creation of XDG user directories does not honor system umask policy
1455094 - CVE-2017-15131 xdg-user-dirs, gnome-session: Xsession creation of XDG user directories does not honor system umask policy

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
xdg-user-dirs-0.15-5.el7.src.rpm

x86_64:
xdg-user-dirs-0.15-5.el7.x86_64.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
xdg-user-dirs-0.15-5.el7.src.rpm

x86_64:
xdg-user-dirs-0.15-5.el7.x86_64.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
xdg-user-dirs-0.15-5.el7.src.rpm

ppc64:
xdg-user-dirs-0.15-5.el7.ppc64.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.ppc64.rpm

ppc64le:
xdg-user-dirs-0.15-5.el7.ppc64le.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.ppc64le.rpm

s390x:
xdg-user-dirs-0.15-5.el7.s390x.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.s390x.rpm

x86_64:
xdg-user-dirs-0.15-5.el7.x86_64.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
xdg-user-dirs-0.15-5.el7.src.rpm

aarch64:
xdg-user-dirs-0.15-5.el7.aarch64.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.aarch64.rpm

ppc64le:
xdg-user-dirs-0.15-5.el7.ppc64le.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.ppc64le.rpm

s390x:
xdg-user-dirs-0.15-5.el7.s390x.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.s390x.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
xdg-user-dirs-0.15-5.el7.src.rpm

x86_64:
xdg-user-dirs-0.15-5.el7.x86_64.rpm
xdg-user-dirs-debuginfo-0.15-5.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-15131
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/documentation/en-US/red_hat_enterprise_linux/7/html/7.5_release_notes/index.html

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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