Debian 11: DLA-4146-1 moderate: libxml2 out-of-bounds and heap overflow

Two issues have been found in libxml2, the GNOME XML library.
Thy are related to an out-of-bounds memory access in the Python API and a
heap-buffer-overflow in xmlSchemaIDCFillNodeTables().


For Debian 11 bullseye, these problems have been fixed in version
2.9.10+dfsg-6.7+deb11u7.

We recommend that you upgrade your libxml2 packages.

For the detailed security status of libxml2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libxml2

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS