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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: liblouis security update
Advisory ID:       RHSA-2017:3111-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:3111
Issue date:        2017-11-02
CVE Names:         CVE-2014-8184 CVE-2017-13738 CVE-2017-13740 
                   CVE-2017-13741 CVE-2017-13742 CVE-2017-13743 
                   CVE-2017-13744 
=====================================================================

1. Summary:

An update for liblouis 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) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 7) - aarch64, noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64

3. Description:

Liblouis is an open source braille translator and back-translator named in
honor of Louis Braille. It features support for computer and literary
braille, supports contracted and uncontracted translation for many
languages and has support for hyphenation. New languages can easily be
added through tables that support a rule or dictionary based approach.
Liblouis also supports math braille (Nemeth and Marburg).

Security Fix(es):

* Multiple flaws were found in the processing of translation tables in
liblouis. An attacker could crash or potentially execute arbitrary code
using malicious translation tables. (CVE-2014-8184, CVE-2017-13738,
CVE-2017-13740, CVE-2017-13741, CVE-2017-13742, CVE-2017-13743,
CVE-2017-13744)

The CVE-2014-8184 issue was discovered by Raphael Sanchez Prudencio (Red
Hat).

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/):

1488933 - CVE-2017-13738 liblouis: Illegal address access in the _lou_getALine function
1488935 - CVE-2017-13744 liblouis: Illegal address access in the _lou_getALine() function
1488937 - CVE-2017-13740 liblouis: Stack-buffer overflow in the parseChars() function
1488938 - CVE-2017-13741 liblouis: Use-after-free in the function compileBrailleIndicator()
1488939 - CVE-2017-13742 liblouis: Stack-buffer overflow in the function includeFile()
1488942 - CVE-2017-13743 liblouis: Buffer overflow in the function _lou_showString()
1492701 - CVE-2014-8184 liblouis: stack-based buffer overflow in findTable()

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
liblouis-2.5.2-11.el7_4.src.rpm

noarch:
liblouis-python-2.5.2-11.el7_4.noarch.rpm

x86_64:
liblouis-2.5.2-11.el7_4.i686.rpm
liblouis-2.5.2-11.el7_4.x86_64.rpm
liblouis-debuginfo-2.5.2-11.el7_4.i686.rpm
liblouis-debuginfo-2.5.2-11.el7_4.x86_64.rpm

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

noarch:
liblouis-doc-2.5.2-11.el7_4.noarch.rpm

x86_64:
liblouis-debuginfo-2.5.2-11.el7_4.i686.rpm
liblouis-debuginfo-2.5.2-11.el7_4.x86_64.rpm
liblouis-devel-2.5.2-11.el7_4.i686.rpm
liblouis-devel-2.5.2-11.el7_4.x86_64.rpm
liblouis-utils-2.5.2-11.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
liblouis-2.5.2-11.el7_4.src.rpm

aarch64:
liblouis-2.5.2-11.el7_4.aarch64.rpm
liblouis-debuginfo-2.5.2-11.el7_4.aarch64.rpm

noarch:
liblouis-python-2.5.2-11.el7_4.noarch.rpm

ppc64:
liblouis-2.5.2-11.el7_4.ppc.rpm
liblouis-2.5.2-11.el7_4.ppc64.rpm
liblouis-debuginfo-2.5.2-11.el7_4.ppc.rpm
liblouis-debuginfo-2.5.2-11.el7_4.ppc64.rpm

ppc64le:
liblouis-2.5.2-11.el7_4.ppc64le.rpm
liblouis-debuginfo-2.5.2-11.el7_4.ppc64le.rpm

s390x:
liblouis-2.5.2-11.el7_4.s390.rpm
liblouis-2.5.2-11.el7_4.s390x.rpm
liblouis-debuginfo-2.5.2-11.el7_4.s390.rpm
liblouis-debuginfo-2.5.2-11.el7_4.s390x.rpm

x86_64:
liblouis-2.5.2-11.el7_4.i686.rpm
liblouis-2.5.2-11.el7_4.x86_64.rpm
liblouis-debuginfo-2.5.2-11.el7_4.i686.rpm
liblouis-debuginfo-2.5.2-11.el7_4.x86_64.rpm

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

aarch64:
liblouis-debuginfo-2.5.2-11.el7_4.aarch64.rpm
liblouis-devel-2.5.2-11.el7_4.aarch64.rpm
liblouis-utils-2.5.2-11.el7_4.aarch64.rpm

noarch:
liblouis-doc-2.5.2-11.el7_4.noarch.rpm

ppc64:
liblouis-debuginfo-2.5.2-11.el7_4.ppc.rpm
liblouis-debuginfo-2.5.2-11.el7_4.ppc64.rpm
liblouis-devel-2.5.2-11.el7_4.ppc.rpm
liblouis-devel-2.5.2-11.el7_4.ppc64.rpm
liblouis-utils-2.5.2-11.el7_4.ppc64.rpm

ppc64le:
liblouis-debuginfo-2.5.2-11.el7_4.ppc64le.rpm
liblouis-devel-2.5.2-11.el7_4.ppc64le.rpm
liblouis-utils-2.5.2-11.el7_4.ppc64le.rpm

s390x:
liblouis-debuginfo-2.5.2-11.el7_4.s390.rpm
liblouis-debuginfo-2.5.2-11.el7_4.s390x.rpm
liblouis-devel-2.5.2-11.el7_4.s390.rpm
liblouis-devel-2.5.2-11.el7_4.s390x.rpm
liblouis-utils-2.5.2-11.el7_4.s390x.rpm

x86_64:
liblouis-debuginfo-2.5.2-11.el7_4.i686.rpm
liblouis-debuginfo-2.5.2-11.el7_4.x86_64.rpm
liblouis-devel-2.5.2-11.el7_4.i686.rpm
liblouis-devel-2.5.2-11.el7_4.x86_64.rpm
liblouis-utils-2.5.2-11.el7_4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
liblouis-2.5.2-11.el7_4.src.rpm

noarch:
liblouis-python-2.5.2-11.el7_4.noarch.rpm

x86_64:
liblouis-2.5.2-11.el7_4.i686.rpm
liblouis-2.5.2-11.el7_4.x86_64.rpm
liblouis-debuginfo-2.5.2-11.el7_4.i686.rpm
liblouis-debuginfo-2.5.2-11.el7_4.x86_64.rpm

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

noarch:
liblouis-doc-2.5.2-11.el7_4.noarch.rpm

x86_64:
liblouis-debuginfo-2.5.2-11.el7_4.i686.rpm
liblouis-debuginfo-2.5.2-11.el7_4.x86_64.rpm
liblouis-devel-2.5.2-11.el7_4.i686.rpm
liblouis-devel-2.5.2-11.el7_4.x86_64.rpm
liblouis-utils-2.5.2-11.el7_4.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-2014-8184
https://access.redhat.com/security/cve/CVE-2017-13738
https://access.redhat.com/security/cve/CVE-2017-13740
https://access.redhat.com/security/cve/CVE-2017-13741
https://access.redhat.com/security/cve/CVE-2017-13742
https://access.redhat.com/security/cve/CVE-2017-13743
https://access.redhat.com/security/cve/CVE-2017-13744
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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