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Ubuntu Security Notice USN-3669-1
June 04, 2018

liblouis vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 18.04 LTS
– Ubuntu 17.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Liblouis.

Software Description:
– liblouis: Braille translation library – utilities

Details:

It was discovered that Liblouis incorrectly handled certain files.
An attacker could possibly use this to cause a denial of service.
This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11410)

It was discovered that Liblouis incorrectly handled certain files.
An attacker could possibly use this to execute arbitrary code.
(CVE-2018-11440)

It was discovered that Liblouis incorrectly handled certain files.
An attacker could possibly use this to cause a denial of service or
execute arbitrary code. (CVE-2018-11577)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
liblouis-bin                    3.5.0-1ubuntu0.1
liblouis14                      3.5.0-1ubuntu0.1

Ubuntu 17.10:
liblouis-bin                    3.0.0-3ubuntu1.1
liblouis12                      3.0.0-3ubuntu1.1

Ubuntu 16.04 LTS:
liblouis-bin                    2.6.4-2ubuntu0.2
liblouis9                       2.6.4-2ubuntu0.2

Ubuntu 14.04 LTS:
liblouis-bin                    2.5.3-2ubuntu1.3
liblouis2                       2.5.3-2ubuntu1.3

In general, a standard system update will make all the necessary
changes.

References:
https://usn.ubuntu.com/usn/usn-3669-1
CVE-2018-11410, CVE-2018-11440, CVE-2018-11577

Package Information:
https://launchpad.net/ubuntu/+source/liblouis/3.5.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/liblouis/3.0.0-3ubuntu1.1
https://launchpad.net/ubuntu/+source/liblouis/2.6.4-2ubuntu0.2
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