PyPI: python
CVE-2024-0397
Safety vulnerability ID: SFTY-20240617-90108
Safety legacy ID: pyup.io-71775
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.
Overview
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.
Advisory
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.
Affected Package
Also affects
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How to Fix
We recommend updating python to the latest non-vulnerable version.
Mitigation and Workarounds
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Vulnerable Functions
Functions linked to known vulnerabilities.
References
- https://getsafety.com/vulnerabilities/SFTY-20240617-90108/CVE-2024-0397
- http://www.openwall.com/lists/oss-security/2024/06/17/2
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-0397
- 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
- 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/
Verified by Safety
Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.
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