CVE-2024-0397 (GCVE-0-2024-0397)

Vulnerability from cvelistv5 – Published: 2024-06-17 15:09 – Updated: 2025-11-03 21:50
VLAI
Title
Memory race condition in ssl.SSLContext certificate store methods
Summary
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.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
PSF
References
Impacted products
Vendor Product Version
Python Software Foundation CPython Affected: 0 , < 3.8.20 (python)
Affected: 3.9.0 , < 3.9.20 (python)
Affected: 3.10.0 , < 3.10.14 (python)
Affected: 3.11.0 , < 3.11.9 (python)
Affected: 3.12.0 , < 3.12.3 (python)
Affected: 3.13.0a1 , < 3.13.0a5 (python)
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\"descriptions\": [{\"lang\": \"en\", \"value\": \"A defect was discovered in the Python \\u201cssl\\u201d module where there is a memory\\nrace condition with the ssl.SSLContext methods \\u201ccert_store_stats()\\u201d and\\n\\u201cget_ca_certs()\\u201d. The race condition can be triggered if the methods are\\ncalled at the same time as certificates are loaded into the SSLContext,\\nsuch as during the TLS handshake with a certificate directory configured.\\nThis issue is fixed in CPython 3.10.14, 3.11.9, 3.12.3, and 3.13.0a5.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A defect was discovered in the Python \\u201cssl\\u201d module where there is a memory\\nrace condition with the ssl.SSLContext methods \\u201ccert_store_stats()\\u201d and\\n\\u201cget_ca_certs()\\u201d. The race condition can be triggered if the methods are\\ncalled at the same time as certificates are loaded into the SSLContext,\\nsuch as during the TLS handshake with a certificate directory configured.\\nThis issue is fixed in CPython 3.10.14, 3.11.9, 3.12.3, and 3.13.0a5.\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"shortName\": \"PSF\", \"dateUpdated\": \"2024-09-07T02:44:08.540Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-0397\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T21:50:55.091Z\", \"dateReserved\": \"2024-01-10T14:05:31.635Z\", \"assignerOrgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"datePublished\": \"2024-06-17T15:09:40.896Z\", \"assignerShortName\": \"PSF\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.