LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the COM.MICROSOFT.WEBSERVICE function.
https://access.redhat.com/errata/RHSA-2018:0418
https://access.redhat.com/errata/RHSA-2018:0517
https://github.com/jollheef/libreoffice-remote-arbitrary-file-disclosure
https://usn.ubuntu.com/3579-1/
https://www.debian.org/security/2018/dsa-4111
https://www.exploit-db.com/exploits/44022/
https://www.libreoffice.org/about-us/security/advisories/cve-2018-1055/
Source: MITRE
Published: 2018-02-09
Updated: 2019-10-03
Type: NVD-CWE-noinfo
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL