Detections
Analytics
Amazon Linux 2023 : python3.13, python3.13-devel, python3.13-freethreading (ALAS2023-2025-1343)
medium Nessus Plugin ID 282372
Language:
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1343 advisory.When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents. (CVE-2025-12084)
When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS. (CVE-2025-13836)
When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues (CVE-2025-13837)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'dnf update python3.13 --releasever 2023.10.20260105' or or 'dnf update --advisory ALAS2023-2025-1343 --releasever 2023.10.20260105' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2025-1343.html
https://alas.aws.amazon.com/faqs.html
https://explore.alas.aws.amazon.com/CVE-2025-12084.html
Plugin Details
Severity: Medium
ID: 282372
File Name: al2023_ALAS2023-2025-1343.nasl
Version: 1.1
Type: local
Agent: unix
Published: 1/8/2026
Updated: 1/8/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: High
Base Score: 9.4
Temporal Score: 7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C
CVSS Score Source: CVE-2025-13836
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 7.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.3
Threat Score: 1.7
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:python3.13, p-cpe:/a:amazon:linux:python3.13-tkinter, p-cpe:/a:amazon:linux:python3.13-idle, p-cpe:/a:amazon:linux:python3.13-debug, p-cpe:/a:amazon:linux:python3.13-freethreading, p-cpe:/a:amazon:linux:python3.13-test, p-cpe:/a:amazon:linux:python3.13-devel, p-cpe:/a:amazon:linux:python3.13-freethreading-debug, p-cpe:/a:amazon:linux:python3.13-debugsource, p-cpe:/a:amazon:linux:python3.13-libs, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:python3.13-debuginfo
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 1/7/2026
Vulnerability Publication Date: 12/1/2025