CVSS: 9.8EPSS: 0%CPEs: 5EXPL: 0CVE-2019-9855 – Windows 8.3 path equivalence handling flaw allows LibreLogo script execution
https://notcve.org/view.php?id=CVE-2019-9855
LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added to block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1. • http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00055.html https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9855 • CWE-417: Communication Channel Errors •
CVSS: 7.8EPSS: 0%CPEs: 13EXPL: 0CVE-2019-9854 – Unsafe URL assembly flaw in allowed script location check
https://notcve.org/view.php?id=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. 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. • http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00055.html https://bugzilla.redhat.com/show_bug.cgi?id=1769907 https://lists.debian.org/debian-lts-announce/2019/10/msg00005.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQKKOIY2DMZCXJINOLIQXD2NWISDKK3N https://seclists.org/bugtraq/2019/Sep/17 https://usn.ubuntu.com/4138-1 https://www.debian.org/security/201 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-284: Improper Access Control •