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The following two security updates have been released for Ubuntu Linux:

[USN-6877-1] LibreOffice vulnerability
[USN-6876-1] Kopano Core vulnerabilities




[USN-6877-1] LibreOffice vulnerability


==========================================================================
Ubuntu Security Notice USN-6877-1
July 04, 2024

libreoffice vulnerability
==========================================================================

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

- Ubuntu 24.04 LTS
- Ubuntu 23.10

Summary:

LibreOffice could be made to expose sensitive information.

Software Description:
- libreoffice: Office productivity suite

Details:

It was discovered that LibreOffice incorrectly performed TLS certificate
verification when the LibreOfficeKit library is being used by third-party
components. A remote attacker could possibly use this issue to obtain
sensitive information.

Update instructions:

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

Ubuntu 24.04 LTS
libreoffice 4:24.2.4-0ubuntu0.24.04.2

Ubuntu 23.10
libreoffice 4:7.6.7-0ubuntu0.23.10.3

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

References:
https://ubuntu.com/security/notices/USN-6877-1
CVE-2024-5261

Package Information:
https://launchpad.net/ubuntu/+source/libreoffice/4:24.2.4-0ubuntu0.24.04.2
https://launchpad.net/ubuntu/+source/libreoffice/4:7.6.7-0ubuntu0.23.10.3



[USN-6876-1] Kopano Core vulnerabilities


==========================================================================
Ubuntu Security Notice USN-6876-1
July 04, 2024

kopanocore vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in Kopano Core.

Software Description:
- kopanocore: Complete and feature rich groupware solution

Details:

It was discovered that Kopano Core allowed out-of-bounds access. An
attacker could use this issue to expose private information. This issue
only affected Ubuntu 18.04 LTS. (CVE-2019-19907)

It was discovered that Kopano Core allowed possible authentication
with expired passwords. An attacker could use this issue to bypass
authentication. (CVE-2022-26562)

Update instructions:

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

Ubuntu 22.04 LTS
  kopano-archiver                 8.7.0-7.1ubuntu10.1
  kopano-contacts                 8.7.0-7.1ubuntu10.1
  kopano-dagent                   8.7.0-7.1ubuntu10.1
  kopano-gateway                  8.7.0-7.1ubuntu10.1
  kopano-ical                     8.7.0-7.1ubuntu10.1
  kopano-libs                     8.7.0-7.1ubuntu10.1
  kopano-monitor                  8.7.0-7.1ubuntu10.1
  kopano-server                   8.7.0-7.1ubuntu10.1
  kopano-spooler                  8.7.0-7.1ubuntu10.1
  kopano-utils                    8.7.0-7.1ubuntu10.1
  php-mapi                        8.7.0-7.1ubuntu10.1
  python3-mapi                    8.7.0-7.1ubuntu10.1

Ubuntu 20.04 LTS
  kopano-archiver                 8.7.0-7ubuntu1.1
  kopano-contacts                 8.7.0-7ubuntu1.1
  kopano-dagent                   8.7.0-7ubuntu1.1
  kopano-gateway                  8.7.0-7ubuntu1.1
  kopano-ical                     8.7.0-7ubuntu1.1
  kopano-libs                     8.7.0-7ubuntu1.1
  kopano-monitor                  8.7.0-7ubuntu1.1
  kopano-server                   8.7.0-7ubuntu1.1
  kopano-spooler                  8.7.0-7ubuntu1.1
  kopano-utils                    8.7.0-7ubuntu1.1
  php-mapi                        8.7.0-7ubuntu1.1
  python3-mapi                    8.7.0-7ubuntu1.1

Ubuntu 18.04 LTS
  kopano-archiver                 8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-contacts                 8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-dagent                   8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-gateway                  8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-ical                     8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-libs                     8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-monitor                  8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-server                   8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-spooler                  8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  kopano-utils                    8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  php-mapi                        8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro
  python-mapi                     8.5.5-0ubuntu1+esm1
                                  Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-6876-1
( https://ubuntu.com/security/notices/USN-6876-1)
  CVE-2019-19907, CVE-2022-26562

Package Information:
https://launchpad.net/ubuntu/+source/kopanocore/8.7.0-7.1ubuntu10.1
( https://launchpad.net/ubuntu/+source/kopanocore/8.7.0-7.1ubuntu10.1)
https://launchpad.net/ubuntu/+source/kopanocore/8.7.0-7ubuntu1.1
( https://launchpad.net/ubuntu/+source/kopanocore/8.7.0-7ubuntu1.1)