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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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