An out-of-bounds read in the 'bson' module allowed deserialization of
malformed BSON provided by a Server to raise an exception which may contain
arbitrary application memory.
For Debian 11 bullseye, this problem has been fixed in version
3.11.0-1+deb11u1.
We recommend that you upgrade your pymongo packages.
For the detailed security status of pymongo please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/pymongo
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
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