CVE-2024-3219 — Pure-Python fallback of socket.socketpair() doesn’t authenticate peer connection
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 implementa…
Published: 2024-07-29 · CVSS: 5.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7