cbcvebase.
CVE-2019-9854
published 2019-09-06

CVE-2019-9854: 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…

PriorityP340high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
1.93%
77.8th percentile
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-2019-9852, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed by employing a URL encoding attack to defeat the path verification step. However this protection could be bypassed by taking advantage of a flaw in how LibreOffice assembled the final script URL location directly from components of the passed in path as opposed to solely from the sanitized output of the path verification step. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

Affected

18 ranges
VendorProductVersion rangeFixed in
canonicalubuntu_linux
canonicalubuntu_linux
canonicalubuntu_linux
debiandebian_linux
debiandebian_linux
debiandebian_linux
debianlibreoffice< libreoffice 1:6.3.1~rc2-1 (bookworm)libreoffice 1:6.3.1~rc2-1 (bookworm)
fedoraprojectfedora
libreofficelibreoffice>= 0 < 1:6.3.1~rc2-11:6.3.1~rc2-1
libreofficelibreoffice>= 0 < 1:6.3.1~rc2-11:6.3.1~rc2-1
libreofficelibreoffice>= 0 < 1:6.3.1~rc2-11:6.3.1~rc2-1
libreofficelibreoffice>= 0 < 1:6.3.1~rc2-11:6.3.1~rc2-1
libreofficelibreoffice>= 6.2.0 < 6.2.76.2.7
libreofficelibreoffice>= 6.3.0 < 6.3.16.3.1
opensuseleap
opensuseleap
redhatenterprise_linux
redhatenterprise_linux

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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