Vulnerability CVE-2024-0397
Published: 2024-06-17

Description:
A defect was discovered in the Python ??ssl? module where there is a memory
race condition with the ssl.SSLContext methods ??cert_store_stats()? and
??get_ca_certs()?. The race condition can be triggered if the methods are
called at the same time as certificates are loaded into the SSLContext,
such as during the TLS handshake with a certificate directory configured.
This issue is fixed in CPython 3.10.14, 3.11.9, 3.12.3, and 3.13.0a5.

 References:
https://github.com/python/cpython/issues/114572
https://github.com/python/cpython/pull/114573
https://mail.python.org/archives/list/security-announce@python.org/thread/BMAK5BCGKYWNJOACVUSLUF6SFGBIM4VP/
https://github.com/python/cpython/commit/01c37f1d0714f5822d34063ca7180b595abf589d
https://github.com/python/cpython/commit/29c97287d205bf2f410f4895ebce3f43b5160524
https://github.com/python/cpython/commit/37324b421b72b7bc9934e27aba85d48d4773002e
https://github.com/python/cpython/commit/542f3272f56f31ed04e74c40635a913fbc12d286
https://github.com/python/cpython/commit/b228655c227b2ca298a8ffac44d14ce3d22f6faa
https://github.com/python/cpython/commit/bce693111bff906ccf9281c22371331aaff766ab
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