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CVE-2024-5642

June 27, 2024, 10:15 p.m.

Tags

cna@python.org
2024-06-27
CVE-2024-5642

Product(s) Impacted

CPython

  • 3.9 and earlier

Description

CPython 3.9 and earlier doesn't disallow configuring an empty list ("[]") for SSLContext.set_npn_protocols() which is an invalid value for the underlying OpenSSL API. This results in a buffer over-read when NPN is used (see CVE-2024-5535 for OpenSSL). This vulnerability is of low severity due to NPN being not widely used and specifying an empty list likely being uncommon in-practice (typically a protocol name would be configured).

Weaknesses

Date

Published: June 27, 2024, 9:15 p.m.

Last Modified: June 27, 2024, 10:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cna@python.org

References

https://github.com/ cna@python.org
https://github.com/ cna@python.org
https://jbp.io/ cna@python.org
https://mail.python.org/ cna@python.org