Improper Input Validation Affecting python39:3.9/python39-pysocks package, versions <0:1.7.1-4.module+el8.9.0+19644+d68f775d


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.74% (50th percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON39-7412907
  • published28 Jun 2024
  • disclosed27 Jun 2024

Introduced: 27 Jun 2024

CVE-2024-5642  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:8 python39:3.9/python39-pysocks to version 0:1.7.1-4.module+el8.9.0+19644+d68f775d or higher.
This issue was patched in RHSA-2025:23530.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39:3.9/python39-pysocks package and not the python39:3.9/python39-pysocks package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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).

CVSS Base Scores

version 3.1