libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.
parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
Last update: 2021-03-21
Standards version of the package is outdated.
The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.5.1 instead of