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5.1 Medium

CVE-2024-3219 The “socket” module provides a pure-Python fallback to the socket.socketpair() function for platforms that don’t…

Description

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.

Affected products and versions

Product Affected versions Fixed in
CPython 3.13 3.13.0a1 → < 3.13.0rc1 3.13.0rc1
CPython 3.12 3.12.0 → < 3.12.5 3.12.5
CPython 3.11 3.11.0 → < 3.11.10 3.11.10
CPython 3.10 3.10.0 → < 3.10.15 3.10.15
CPython 3.9 3.9.0 → < 3.9.20 3.9.20
CPython 3.8 earliest → < 3.8.20 3.8.20

References

Timeline

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