CVE-2024-5642

CVE Details

Release Date:2024-06-27
Impact:Low What is this?

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).

See more information about CVE-2024-5642 from MITRE CVE dictionary and NIST NVD


NOTE: The following CVSS metrics and score provided are preliminary and subject to review.


CVSS v3 metrics

Base Score: 2.7
Vector String: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Version: 3.1
Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
User Interaction: None
Scope: Unchanged
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Low

Errata information


PlatformErrataRelease Date
Oracle Linux version 8 (PyYAML) ELSA-2025-235302025-12-23
Oracle Linux version 8 (mod_wsgi) ELSA-2025-235302025-12-23
Oracle Linux version 8 (numpy) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-PyMySQL) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-cffi) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-chardet) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-cryptography) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-idna) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-lxml) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-ply) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-psutil) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-psycopg2) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-pycparser) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-pysocks) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-requests) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-toml) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-urllib3) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python-wheel) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python39) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python3x-pip) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python3x-setuptools) ELSA-2025-235302025-12-23
Oracle Linux version 8 (python3x-six) ELSA-2025-235302025-12-23
Oracle Linux version 8 (scipy) ELSA-2025-235302025-12-23
Oracle Linux version 9 (python3.9) ELSA-2025-233422025-12-18


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