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Red Hat Enterprise Linux 7 RHSA-2017:3111-01 Important liblouis Patch

red hat
Calendar Grey November 2, 2017
Scroller Redhat
An update for liblouis has been released to mitigate several vulnerabilities affecting CentOS, categorized as medium severity.
An update for liblouis 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

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).

Topics%20covered

Topics Covered

security advisory red hat security fix moderate impact liblouis

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

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

Read the Full Advisory


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

Topic

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 impactof Moderate. 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 security fix moderate impact liblouis

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

Bugs Fixed

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()

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