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Ubuntu Security Notice USN-4102-1
August 19, 2019

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

– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in LibreOffice.

Software Description:
– libreoffice: Office productivity suite

Details:

It was discovered that LibreOffice incorrectly handled LibreLogo scripts.
If a user were tricked into opening a specially crafted document, a remote
attacker could cause LibreOffice to execute arbitrary code. (CVE-2019-9850,
CVE-2019-9851)

It was discovered that LibreOffice incorrectly handled embedded scripts in
document files. If a user were tricked into opening a specially crafted
document, a remote attacker could possibly execute arbitrary code.
(CVE-2019-9852)

Update instructions:

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

Ubuntu 19.04:
libreoffice-core 1:6.2.6-0ubuntu0.19.04.1

Ubuntu 18.04 LTS:
libreoffice-core 1:6.0.7-0ubuntu0.18.04.9

Ubuntu 16.04 LTS:
libreoffice-core 1:5.1.6~rc2-0ubuntu1~xenial9

After a standard system update you need to restart LibreOffice to make all
the necessary changes.

References:
https://usn.ubuntu.com/4102-1
CVE-2019-9850, CVE-2019-9851, CVE-2019-9852

Package Information:
https://launchpad.net/ubuntu/+source/libreoffice/1:6.2.6-0ubuntu0.19.04.1
https://launchpad.net/ubuntu/+source/libreoffice/1:6.0.7-0ubuntu0.18.04.9
https://launchpad.net/ubuntu/+source/libreoffice/1:5.1.6~rc2-0ubuntu1~xenial9

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