Operating System:

[RedHat]

Published:

07 August 2019

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.2951
                         libmspack security update
                               7 August 2019

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

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

Product:           libmspack
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
                   Red Hat Enterprise Linux WS/Desktop 7
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-18585 CVE-2018-18584 

Reference:         ESB-2019.1006.2
                   ESB-2018.3541.2
                   ESB-2018.3306

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2019:2049

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                   Red Hat Security Advisory

Synopsis:          Moderate: libmspack security update
Advisory ID:       RHSA-2019:2049-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2049
Issue date:        2019-08-06
CVE Names:         CVE-2018-18584 CVE-2018-18585 
=====================================================================

1. Summary:

An update for libmspack is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The libmspack packages contain a library providing compression and
extraction of the Cabinet (CAB) file format used by Microsoft.

Security Fix(es):

* libmspack: Out-of-bounds write in mspack/cab.h (CVE-2018-18584)

* libmspack: chmd_read_headers() fails to reject filenames containing NULL
bytes (CVE-2018-18585)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, 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 7.7 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/):

1644214 - CVE-2018-18584 libmspack: Out-of-bounds write in mspack/cab.h
1644215 - CVE-2018-18585 libmspack: chmd_read_headers() fails to reject filenames containing NULL bytes

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
libmspack-0.5-0.7.alpha.el7.src.rpm

x86_64:
libmspack-0.5-0.7.alpha.el7.i686.rpm
libmspack-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-devel-0.5-0.7.alpha.el7.i686.rpm
libmspack-devel-0.5-0.7.alpha.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
libmspack-0.5-0.7.alpha.el7.src.rpm

x86_64:
libmspack-0.5-0.7.alpha.el7.i686.rpm
libmspack-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-devel-0.5-0.7.alpha.el7.i686.rpm
libmspack-devel-0.5-0.7.alpha.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
libmspack-0.5-0.7.alpha.el7.src.rpm

x86_64:
libmspack-0.5-0.7.alpha.el7.i686.rpm
libmspack-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

Source:
libmspack-0.5-0.7.alpha.el7.src.rpm

ppc64le:
libmspack-0.5-0.7.alpha.el7.ppc64le.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.ppc64le.rpm
libmspack-devel-0.5-0.7.alpha.el7.ppc64le.rpm

x86_64:
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-devel-0.5-0.7.alpha.el7.i686.rpm
libmspack-devel-0.5-0.7.alpha.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
libmspack-0.5-0.7.alpha.el7.src.rpm

x86_64:
libmspack-0.5-0.7.alpha.el7.i686.rpm
libmspack-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
libmspack-debuginfo-0.5-0.7.alpha.el7.i686.rpm
libmspack-debuginfo-0.5-0.7.alpha.el7.x86_64.rpm
libmspack-devel-0.5-0.7.alpha.el7.i686.rpm
libmspack-devel-0.5-0.7.alpha.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-2018-18584
https://access.redhat.com/security/cve/CVE-2018-18585
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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