CVE-2023-29483 Affecting dnspython package, versions *


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.12% (78th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU2310-DNSPYTHON-6252801
  • published20 Feb 2024
  • disclosed11 Apr 2024

Introduced: 20 Feb 2024

CVE-2023-29483  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:23.10 dnspython.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dnspython package and not the dnspython package as distributed by Ubuntu. See How to fix? for Ubuntu:23.10 relevant fixed versions and status.

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 Base Scores

version 3.1