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CVE-2023-29483 Affecting python3-dns package, versions <0:2.6.1-3.el9

Severity

 Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (15th percentile)

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  • Snyk ID SNYK-ALMALINUX9-PYTHON3DNS-8383768
  • published 18 Nov 2024
  • disclosed 22 May 2024
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Introduced: 22 May 2024

CVE-2023-29483 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 python3-dns to version 0:2.6.1-3.el9 or higher.
This issue was patched in ALSA-2024:9423.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-dns package and not the python3-dns package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 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.

References

CVSS Scores

version 3.1
Expand this section

Red Hat

5.9 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

SUSE

5.9 medium