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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- Python Software Foundation / CPython0 – 3.8.20
- Python Software Foundation / CPython3.9.0 – 3.9.20
- Python Software Foundation / CPython3.10.0 – 3.10.15
- Python Software Foundation / CPython3.11.0 – 3.11.10
- Python Software Foundation / CPython3.12.0 – 3.12.4
- Python Software Foundation / CPython3.13.0a1 – 3.13.0a6
References
- MISChttps://github.com/python/cpython/issues/113171
- PATCHhttps://github.com/python/cpython/pull/113179
- MISChttps://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml
- MISChttps://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml
- MISChttps://mail.python.org/archives/list/security-announce@python.org/thread/NRUHDUS2IV2USIZM2CVMSFL6SCKU3RZA/
- PATCHhttps://github.com/python/cpython/commit/22adf29da8d99933ffed8647d3e0726edd16f7f8
- PATCHhttps://github.com/python/cpython/commit/40d75c2b7f5c67e254d0a025e0f2e2c7ada7f69f
- PATCHhttps://github.com/python/cpython/commit/895f7e2ac23eff4743143beef0f0c5ac71ea27d3
- PATCHhttps://github.com/python/cpython/commit/ba431579efdcbaed7a96f2ac4ea0775879a332fb
- PATCHhttps://github.com/python/cpython/commit/c62c9e518b784fe44432a3f4fc265fb95b651906
- PATCHhttps://github.com/python/cpython/commit/f86b17ac511e68192ba71f27e752321a3252cee3
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2024/06/17/3
- MISChttps://security.netapp.com/advisory/ntap-20240726-0004/