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Red Hat Enterprise Linux 7 RHSA-2018:3327-01 Low: Libmspack Security Issue

red hat
Calendar Grey October 30, 2018
Dist Redhat Esm H88
Red Hat issued a low severity security advisory for libmspack in RHEL 7, detailing updates to address vulnerabilities. Users should review the advisory for necessary updates
An update for libmspack is now available for Red Hat Enterprise Linux 7

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

Summary

The libmspack packages contain a library providing compression and extraction of the Cabinet (CAB) file format used by Microsoft.
Security Fix(es):
* libmspack: off-by-one error in the CHM PMGI/PMGL chunk number validity checks (CVE-2018-14679)
* libmspack: off-by-one error in the CHM chunk number validity checks (CVE-2018-14680)
* libmspack: out-of-bounds write in kwajd_read_headers in mspack/kwajd.c (CVE-2018-14681)
* libmspack: off-by-one error in the TOLOWER() macro for CHM decompression (CVE-2018-14682)
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 7.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory Red Hat low severity security impact out-of-bounds off-by-one error libmspack

References

https://access.redhat.com/security/cve/CVE-2018-14679 https://access.redhat.com/security/cve/CVE-2018-14680 https://access.redhat.com/security/cve/CVE-2018-14681 https://access.redhat.com/security/cve/CVE-2018-14682 https://access.redhat.com/security/updates/classification/#low https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.6_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: libmspack-0.5-0.6.alpha.el7.src.rpm
x86_64: libmspack-0.5-0.6.alpha.el7.i686.rpm libmspack-0.5-0.6.alpha.el7.x86_64.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.i686.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: libmspack-debuginfo-0.5-0.6.alpha.el7.i686.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.x86_64.rpm libmspack-devel-0.5-0.6.alpha.el7.i686.rpm libmspack-devel-0.5-0.6.alpha.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: libmspack-0.5-0.6.alpha.el7.src.rpm
x86_64: libmspack-0.5-0.6.alpha.el7.i686.rpm libmspack-0.5-0.6.alpha.el7.x86_64.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.i686.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: libmspack-debuginfo-0.5-0.6.alpha.el7.i686.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.x86_64.rpm libmspack-devel-0.5-0.6.alpha.el7.i686.rpm libmspack-devel-0.5-0.6.alpha.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: libmspack-0.5-0.6.alpha.el7.src.rpm
x86_64: libmspack-0.5-0.6.alpha.el7.i686.rpm libmspack-0.5-0.6.alpha.el7.x86_64.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.i686.rpm libmspack-debuginfo-0.5-0.6.alpha.el7.x86_64.rpm


Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:3327-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3327
Issue date: 2018-10-30

Topic

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 impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat low severity security impact out-of-bounds off-by-one error libmspack

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

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le

Bugs Fixed

1610890 - CVE-2018-14679 libmspack: off-by-one error in the CHM PMGI/PMGL chunk number validity checks

1610896 - CVE-2018-14681 libmspack: out-of-bounds write in kwajd_read_headers in mspack/kwajd.c

1610934 - CVE-2018-14680 libmspack: off-by-one error in the CHM chunk number validity checks

1610941 - CVE-2018-14682 libmspack: off-by-one error in the TOLOWER() macro for CHM decompression

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