Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2024/06/17/2
- https://github.com/python/cpython/commit/01c37f1d0714f5822d34063ca7180b595abf589
- https://github.com/python/cpython/commit/29c97287d205bf2f410f4895ebce3f43b516052
- https://github.com/python/cpython/commit/37324b421b72b7bc9934e27aba85d48d4773002
- https://github.com/python/cpython/commit/542f3272f56f31ed04e74c40635a913fbc12d28
- https://github.com/python/cpython/commit/b228655c227b2ca298a8ffac44d14ce3d22f6fa
- https://github.com/python/cpython/commit/bce693111bff906ccf9281c22371331aaff766a
- https://github.com/python/cpython/issues/114572
- https://github.com/python/cpython/pull/114573
- https://mail.python.org/archives/list/[email protected]/thread/BMAK5B
- http://www.openwall.com/lists/oss-security/2024/06/17/2
- https://github.com/python/cpython/commit/01c37f1d0714f5822d34063ca7180b595abf589
- https://github.com/python/cpython/commit/29c97287d205bf2f410f4895ebce3f43b516052
- https://github.com/python/cpython/commit/37324b421b72b7bc9934e27aba85d48d4773002
- https://github.com/python/cpython/commit/542f3272f56f31ed04e74c40635a913fbc12d28
FAQ
What is CVE-2024-0397?
CVE-2024-0397 is a vulnerability with a CVSS score of 7.4 (HIGH). 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...
How severe is CVE-2024-0397?
CVE-2024-0397 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-0397?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.