CVE-2024-4032

HIGH

CPython ipaddress Module IP Address Classification Flaw

Title source: llm
STIX 2.1

Description

The “ipaddress” module contained incorrect information about whether certain IPv4 and IPv6 addresses were designated as “globally reachable” or “private”. This affected the is_private and is_global properties of the ipaddress.IPv4Address, ipaddress.IPv4Network, ipaddress.IPv6Address, and ipaddress.IPv6Network classes, where values wouldn’t be returned in accordance with the latest information from the IANA Special-Purpose Address Registries. CPython 3.12.4 and 3.13.0a6 contain updated information from these registries and thus have the intended behavior.

References (14)

Core 14
Core References
Issue Tracking issue-tracking
https://github.com/python/cpython/issues/113171

Scores

CVSS v3 7.5
EPSS 0.0104
EPSS Percentile 59.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-697
Status published
Products (6)
Python Software Foundation/CPython < 3.8.20
Python Software Foundation/CPython 3.10.0 - 3.10.15
Python Software Foundation/CPython 3.11.0 - 3.11.10
Python Software Foundation/CPython 3.12.0 - 3.12.4
Python Software Foundation/CPython 3.13.0a1 - 3.13.0a6
Python Software Foundation/CPython 3.9.0 - 3.9.20
Published Jun 17, 2024
Tracked Since Feb 18, 2026