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CVE-2024-3219

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Date: July 29, 2024

The “socket” module provides a pure-Python fallback to the socket.socketpair() function for platforms that don’t support AF_UNIX, such as Windows. This pure-Python implementation uses AF_INET or AF_INET6 to create a local connected pair of sockets. The connection between the two sockets was not verified before passing the two sockets back to the user, which leaves the server socket vulnerable to a connection race from a malicious local peer. Platforms that support AF_UNIX such as Linux and macOS are not affected by this vulnerability. Versions prior to CPython 3.5 are not affected due to the vulnerable API not being included.

Language: Python

Severity Score

Related Resources (19)

https://github.com/python/cpython/commit/06fa244666ec6335a3b9bf2367e31b42b9a89b20
https://mail.python.org/archives/list/security-announce@python.org/thread/WYKDQWIERRE2ICIYMSVRZJO33GSCWU2B/
https://github.com/python/cpython/commit/2621a8a40ba4b2c68ca564671b7daa5da80a4508
https://github.com/python/cpython/commit/e319f774f9e766a2b92949444a2d46081df3363a
https://github.com/python/cpython/commit/0b65c8bf5367625673eafb92f85046a1b31259f2
https://github.com/python/cpython/commit/3f5d9d12c74787fbf3f5891835c85cc15526c86d
https://github.com/python/cpython/commit/c5655aa6ad120d2ed7f255bebd6e8b71a9c07dde
https://github.com/python/cpython/commit/f071f01b7b7e19d7d6b3a4b0ec62f820ecb14660
https://github.com/python/cpython/commit/c21a36112a0028d7ac3cf8f480e0dc88dba5922c
http://www.openwall.com/lists/oss-security/2024/07/29/3
https://github.com/python/cpython/commit/5df322e91a40909e6904bbdbc0c3a6b6a9eead39
https://github.com/python/cpython/issues/122133
https://github.com/python/cpython/commit/220e31adeaaa8436c9ff234cba1398bc49e2bb6c
https://github.com/python/cpython/commit/b252317956b7fc035bb3774ef6a177e227f9fc54
https://github.com/python/cpython/commit/31302f5fc24eecd693f0c8aaba7c2840b09b594d
https://github.com/python/cpython/commit/5f90abaa786f994db3907fc31e2ee00ea2cf0929
https://nvd.nist.gov/vuln/detail/CVE-2024-3219
https://github.com/python/cpython/pull/122134
https://www.mend.io/vulnerability-database/CVE-2024-3219

Severity Score

Weakness Type (CWE)

Missing Authentication for Critical Function

CWE-306

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

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