LibreOffice could be made to crash or run programs as your login if it opened a specially crafted file.
Marcin Noga discovered that LibreOffice incorrectly handled PPT documents. If a user were tricked into opening a specially crafted PPT document, a remote attacker could cause LibreOffice to crash, and possibly execute arbitrary code. (CVE-2017-12607)
2 November 2017
A security issue affects these releases of Ubuntu and its derivatives:
LibreOffice could be made to crash or run programs as your login if it opened a specially crafted file.
Marcin Noga discovered that LibreOffice incorrectly handled PPT documents. If a user were tricked into opening a specially crafted PPT document, a remote attacker could cause LibreOffice to crash, and possibly execute arbitrary code. (CVE-2017-12607)
Marcin Noga discovered that LibreOffice incorrectly handled Word documents. If a user were tricked into opening a specially crafted Word document, a remote attacker could cause LibreOffice to crash, and possibly execute arbitrary code. (CVE-2017-12608)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart LibreOffice to make all the necessary changes.
Vulmon