A unixODBC security update has been released for Ubuntu Linux 14.04 LTS and 16.04 LTS.

[USN-6276-1] unixODBC vulnerability

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Ubuntu Security Notice USN-6276-1
August 07, 2023

unixodbc vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

unixODBC could be made to denial of service.

Software Description:
- unixodbc: Basic ODBC tools

Details:

It was discovered that unixODBC incorrectly handled certain unicode
to ansi copies. An attacker could possibly use this issue to cause
a denial of service.

Update instructions:

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

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
libodbc1 2.3.1-4.1ubuntu0.1~esm1
unixodbc 2.3.1-4.1ubuntu0.1~esm1

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
libodbc1 2.2.14p2-5ubuntu5+esm1
unixodbc 2.2.14p2-5ubuntu5+esm1

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

References:
https://ubuntu.com/security/notices/USN-6276-1
CVE-2018-7409