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The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other unspecified impact by performing a man-in-the-middle attack.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade pykerberos | Jul 30, 2024 | Aug 25, 2017 |
| Freebsd | — | Upgrade py310-kerberosUpgrade py311-kerberosUpgrade py38-kerberosUpgrade py37-kerberosUpgrade py39-kerberos | Apr 14, 2023 | Apr 10, 2023 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 21, 2015 |
| Ubuntu | — | Upgrade pykerberos | Nov 19, 2024 | Aug 25, 2017 |
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