PSF-2024-4: Memory race condition in ssl.SSLContext certificate store methods
Published Jun 17, 2024
·Updated
A defect was discovered in the Python “ssl” module where there is a memory race condition with the ssl.SSLContext methods “certstorestats()” and “getcacerts()”. 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.
Affected Software
1 affected component
Python Software Foundation CPython<3.10.14, <3.11.9, <3.12.3, <3.13.0a5
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
CPythonto a version that resolves this vulnerability.Fixed in 3.10.14 - Upgrade
Upgrade
CPythonto a version that resolves this vulnerability.Fixed in 3.11.9 - Upgrade
Upgrade
CPythonto a version that resolves this vulnerability.Fixed in 3.12.3 - Upgrade
Upgrade
CPythonto a version that resolves this vulnerability.Fixed in 3.13.0a5
Event History
Jun 17, 2024
CVE Published
via OSV·03:09 PM
Data Sourced
via OSV·03:09 PM
DescriptionSeverity