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Ubuntu Security Notice USN-6546-2

Ubuntu Security Notice USN-6546-2
Posted Dec 15, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6546-2 - USN-6546-1 fixed vulnerabilities in LibreOffice. This update provides the corresponding updates for Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. 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. 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.

tags | advisory, remote, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2023-6185, CVE-2023-6186
SHA-256 | 808b75d5f543a21d97def30aa63e9371eeed40a1188f1ac039def1ee13521456

Ubuntu Security Notice USN-6546-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-6546-2
December 14, 2023

libreoffice vulnerabilities
==========================================================================

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

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