=========================================================================Ubuntu Security Notice USN-5996-1
April 04, 2023

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

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

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 issue to cause a denial of service.
(CVE-2023-26767, CVE-2023-26768, CVE-2023-26769)

Update instructions:

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

Ubuntu 22.10:
  liblouis-bin                    3.22.0-2ubuntu0.1
  liblouis20                      3.22.0-2ubuntu0.1

Ubuntu 22.04 LTS:
  liblouis-bin                    3.20.0-2ubuntu0.2
  liblouis20                      3.20.0-2ubuntu0.2

Ubuntu 20.04 LTS:
  liblouis-bin                    3.12.0-3ubuntu0.2
  liblouis20                      3.12.0-3ubuntu0.2

Ubuntu 18.04 LTS:
  liblouis-bin                    3.5.0-1ubuntu0.5
  python-louis                    3.5.0-1ubuntu0.5

Ubuntu 16.04 ESM:
  liblouis-bin                    2.6.4-2ubuntu0.4+esm1
  liblouis9                       2.6.4-2ubuntu0.4+esm1

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

References:
  https://ubuntu.com/security/notices/USN-5996-1
  CVE-2023-26767, CVE-2023-26768, CVE-2023-26769

Package Information:
  https://launchpad.net/ubuntu/+source/liblouis/3.22.0-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/liblouis/3.20.0-2ubuntu0.2
  https://launchpad.net/ubuntu/+source/liblouis/3.12.0-3ubuntu0.2
  https://launchpad.net/ubuntu/+source/liblouis/3.5.0-1ubuntu0.5