Detections
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Echo: python3.9: security update to 3.9

medium Tenable Cloud Security Plugin ID 459711

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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). (CVE-2024-5642)

Solution

Update the python3.9 library and its related packages to version 3.9 or later.

See Also

https://advisory.echohq.com/cve/CVE-2024-5642

Plugin Details

Severity: Medium

ID: 459711

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.71

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2024-5642

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/28/2026

Vulnerability Publication Date: 6/27/2024

Reference Information

CVE: CVE-2024-5642