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Ubuntu Security Notice USN-6546-2
December 14, 2023

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in LibreOffice.

Software Description:
- libreoffice: Office productivity suite

Details:

USN-6546-1 fixed vulnerabilities in LibreOffice. This update provides the
corresponding updates for Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

Original advisory details:

  Reginaldo Silva discovered that LibreOffice incorrectly handled filenames
  when passing embedded videos to GStreamer. If a user were tricked into
  opening a specially crafted file, a remote attacker could possibly use this
  issue to execute arbitrary GStreamer plugins. (CVE-2023-6185)
   Reginaldo Silva discovered that LibreOffice incorrectly handled certain
  non-typical hyperlinks. If a user were tricked into opening a specially
  crafted file, a remote attacker could possibly use this issue to execute
  arbitrary scripts. (CVE-2023-6186)

Update instructions:

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

Ubuntu 22.04 LTS:
   libreoffice                     1:7.3.7-0ubuntu0.22.04.4

Ubuntu 20.04 LTS:
   libreoffice                     1:6.4.7-0ubuntu0.20.04.9

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

References:
   https://ubuntu.com/security/notices/USN-6546-2
   https://ubuntu.com/security/notices/USN-6546-1
   CVE-2023-6185, CVE-2023-6186

Package Information:
   https://launchpad.net/ubuntu/+source/libreoffice/1:7.3.7-0ubuntu0.22.04.4
   https://launchpad.net/ubuntu/+source/libreoffice/1:6.4.7-0ubuntu0.20.04.9