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CentOS Linux 8 [TuxCare] Security Update: platform-python / platform-python-debug / platform-python-devel / etc Multiple Vulnerabilities (CENTOS-STREAM8:CLSA-2026:1773222843)

medium Nessus Plugin ID 360340

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS-STREAM8:CLSA-2026:1773222843 advisory.

 - There is a MEDIUM severity vulnerability affecting CPython. Regular expressions that allowed excessive backtracking during tarfile.TarFile header parsing are vulnerable to ReDoS via specifically-crafted tar archives. (CVE-2024-6232)

 - A vulnerability has been found in the CPython `venv` module and CLI where path names provided when creating a virtual environment were not quoted properly, allowing the creator to inject commands into virtual environment activation scripts (ie source venv/bin/activate). This means that attacker- controlled virtual environments are able to run commands when the virtual environment is activated.
 Virtual environments which are not created by an attacker or which aren't activated before being used (ie ./venv/bin/python) are not affected. (CVE-2024-9287)

 - The imaplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters. (CVE-2025-15366)

 - The email module, specifically the BytesGenerator class, didn't properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized. This is only applicable if using LiteralHeader writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in BytesGenerator. (CVE-2026-1299)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages based on the guidance in TuxCare advisory CENTOS-STREAM8:CLSA-2026:1773222843.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1773222843

http://www.nessus.org/u?052b789b

Plugin Details

Severity: Medium

ID: 360340

File Name: tuxcare_centos_8_CLSA-2026-1773222843.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.95

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2024-9287

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-1299

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/11/2026

Vulnerability Publication Date: 9/3/2024

Reference Information

CVE: CVE-2024-6232, CVE-2024-9287, CVE-2025-15366, CVE-2026-1299

CLSA: 2026:1773222843