eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.
CVSS Details
- CVSS 3.1 Base Score: 7
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade python3-dns | May 31, 2024 | Apr 11, 2024 |
| Amazon Linux Ami 2 | — | Upgrade python-dns | Oct 3, 2024 | Apr 11, 2024 |
| Debian | — | No solution existsUpgrade dnspython | May 15, 2025 | Apr 11, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade python3-dns | Jan 14, 2025 | Apr 11, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3-dns | Oct 9, 2024 | Apr 11, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-dns | Oct 9, 2024 | Apr 11, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade python3-dns | Jan 15, 2025 | Apr 11, 2024 |
| Oracle_linux | — | Upgrade python3-dns | May 30, 2024 | Feb 9, 2024 |
| Redhat Openshift | — | Upgrade python-eventlet | Jun 28, 2024 | Apr 11, 2024 |
| Redhat_linux | — | Upgrade python3-dnsNo solution exists | May 23, 2024 | Apr 11, 2024 |
| Rocky_linux | — | — | Aug 15, 2024 | Apr 11, 2024 |
| Suse | — | Upgrade python311-dnspythonUpgrade python3-dnspythonUpgrade python-dnspython | Jul 26, 2024 | Apr 11, 2024 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Apr 11, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 11, 2024 |
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