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CVE-2024-0397— Memory race condition in ssl.SSLContext certificate store methods

Quick assessment

Affected
Python Software Foundation CPython
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

cpython是Python基金会的用C语言实现的Python解释器。 cpython存在安全漏洞，该漏洞源于cert_store_stats函数和get_ca_certs函数之间存在竞争条件。

AI Predicted 5.5 Difficulty: Hard EPSS 0.81% · P55

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise
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I. Basic Information for CVE-2024-0397

Vulnerability Information
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Vulnerability Title
Memory race condition in ssl.SSLContext certificate store methods
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
cpython 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cpython是Python基金会的用C语言实现的Python解释器。 cpython存在安全漏洞，该漏洞源于cert_store_stats函数和get_ca_certs函数之间存在竞争条件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Python Software Foundation CPython 0 ~ 3.8.20 -

II. Public POCs for CVE-2024-0397

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III. Intelligence Information for CVE-2024-0397

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Patches & Fixes for CVE-2024-0397 (7)

Mailing List Discussions for CVE-2024-0397 (1)

Other References for CVE-2024-0397 (2)

IV. Related Vulnerabilities

Same product: CPython
Same vendor: Python Software Foundation

V. Comments for CVE-2024-0397

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