CVE-2023-29483
Publication date 11 April 2024
Last updated 24 July 2024
Ubuntu priority
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.
Read the notes from the security team
Why is this CVE low priority?
Not considered an important issue by upstream dnspython developers
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| dnspython | 24.10 oracular |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Vulnerable
|
|
| 20.04 LTS focal |
Vulnerable
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty | Ignored end of ESM support, was needs-triage |
Notes
mdeslaur
upstream doesn't consider this important enough to backport to earlier releases: https://github.com/rthalley/dnspython/issues/1051#issuecomment-1949383928