CVE-2019-9852
Published: 15 August 2019
LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libreoffice Launchpad, Ubuntu, Debian |
bionic |
Released
(1:6.0.7-0ubuntu0.18.04.9)
|
| disco |
Released
(1:6.2.6-0ubuntu0.19.04.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(1:6.3.0-1)
|
|
| xenial |
Released
(1:5.1.6~rc2-0ubuntu1~xenial9)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |