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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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