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CVE-2024-5642

CVE-kwetsbaarheidsdetails - eXtreme Datacenter Security Operations

Gepubliceerd 2024-06-27 21:05:31

Laatst bijgewerkt 2026-07-31 14:06:47

Toegewezen door PSF

CVSS-score 6.5

Status PUBLISHED

Beschrijving

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).

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