CVE-2023-29483 – dnspython

Package

Manager: pip
Name: dnspython
Vulnerable Version: >=0 <2.6.1

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS: 0.04857 pctl0.89135

Details

Potential DoS via the Tudoor mechanism in eventlet and dnspython 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.

Metadata

Created: 2024-04-11T15:30:48Z
Modified: 2024-06-26T03:31:48Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/04/GHSA-3rq5-2g8h-59hc/GHSA-3rq5-2g8h-59hc.json
CWE IDs: ["CWE-696"]
Alternative ID: GHSA-3rq5-2g8h-59hc
Finding: F014
Auto approve: 1