A python-ipaddress security update has been released for Debian GNU/Linux 10 LTS to address an issue that might allow a remote attacker to cause a denial of service.

DLA 3424-1: python-ipaddress security update

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Debian LTS Advisory DLA-3424-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Guilhem Moulin
May 16, 2023   https://wiki.debian.org/LTS
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Package : python-ipaddress
Version : 1.0.17-1+deb10u1
CVE ID : CVE-2020-14422

Martin Wennberg discovered that python-ipaddress, a backport of Python 3's
ipaddress module, improperly computed hash values in the IPv4Interface and
IPv6Interface classes, which might allow a remote attacker to cause a
denial of service if an application is affected by the performance of a
dictionary containing IPv4Interface or IPv6Interface objects. The attacker
can then cause many dictionary entries to be created.

For Debian 10 buster, this problem has been fixed in version
1.0.17-1+deb10u1.

We recommend that you upgrade your python-ipaddress packages.

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

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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