Incorrect Behavior Order Affecting python3-dns+idna package, versions <0:2.1.0-3.amzn2023.0.4


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (16th percentile)

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  • Snyk IDSNYK-AMZN2023-PYTHON3DNSIDNA-8186955
  • published15 Oct 2024
  • disclosed11 Apr 2024

Introduced: 11 Apr 2024

CVE-2023-29483  (opens in a new tab)
CWE-696  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 python3-dns+idna to version 0:2.1.0-3.amzn2023.0.4 or higher.
This issue was patched in ALAS2023-2024-739.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-dns+idna package and not the python3-dns+idna package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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 Scores

version 3.1