IBM SECURITY ADVISORY First Issued: Wed Nov 19 08:19:03 CST 2025 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/python_advisory17.asc Security Bulletin: AIX is affected by multiple vulnerabilities due to Python =============================================================================== SUMMARY: There are multiple vulnerabilities in Python used by AIX (CVE-2025-59375, CVE-2024-47081, CVE-2025-6965, CVE-2024-5642). Python is used by AIX as part of Ansible node management automation. =============================================================================== VULNERABILITY DETAILS: CVEID: CVE-2025-59375 https://www.cve.org/CVERecord?id=CVE-2025-59375 DESCRIPTION: libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. CVSS Base Score: 7.5 CVSS Environmental Score*: Undefined CVSS Vector:(CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2024-47081 https://www.cve.org/CVERecord?id=CVE-2024-47081 DESCRIPTION: Requests is a HTTP library. Due to a URL parsing issue, Requests releases prior to 2.32.4 may leak .netrc credentials to third parties for specific maliciously-crafted URLs. Users should upgrade to version 2.32.4 to receive a fix. For older versions of Requests, use of the .netrc file can be disabled with `trust_env=False` on one's Requests Session. CVSS Base Score: 5.3 CVSS Environmental Score*: Undefined CVSS Vector:(CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N) CVEID: CVE-2025-6965 https://www.cve.org/CVERecord?id=CVE-2025-6965 DESCRIPTION: There exists a vulnerability in SQLite versions before 3.50.2 where the number of aggregate terms could exceed the number of columns available. This could lead to a memory corruption issue. CVSS Base Score: 9.8 CVSS Environmental Score*: Undefined CVSS Vector:(CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE-2024-5642 https://www.cve.org/CVERecord?id=CVE-2024-5642 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). CVSS Base Score: 2.7 CVSS Environmental Score*: Undefined CVSS Vector:(CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L) AFFECTED PRODUCTS AND VERSIONS: AIX 7.3 VIOS 4.1 The following fileset levels are vulnerable: key_fileset = osrcaix Fileset Lower Level Upper Level KEY ------------------------------------------------------ python3.9.base 3.9.0.0 3.9.23.0 key_w_fs python3.11.base 3.11.0.0 3.11.13.0 key_w_fs Note: A. Latest level of Python fileset is available from the web download site: https://www.ibm.com/resources/mrs/assets?source=aixbp To find out whether the affected filesets are installed on your systems, refer to the lslpp command found in the AIX user's guide. Example: lslpp -L | grep -i python3.9.base REMEDIATION: A. FIXES IBM strongly recommends addressing the vulnerability now. The fixes can be downloaded via https from: https://aix.software.ibm.com/aix/efixes/security/python_fix17.tar The links above are to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels. AIX Level Fix (*.Z) KEY ----------------------------------------------- 7.3 python-3.9.24.0.tar.Z key_w_fix 7.3 python-3.11.14.0.tar.Z key_w_fix VIOS Level Fix (*.Z) KEY ----------------------------------------------- 4.1 python-3.9.24.0.tar.Z key_w_fix 4.1 python-3.11.14.0.tar.Z key_w_fix To extract the fixes from the tar file: tar xvf python_fix17.tar cd python_fix17 Verify you have retrieved the fixes intact: The checksums below were generated using the "openssl dgst -sha256 [file]" command as the following: openssl dgst -sha256 filename KEY --------------------------------------------------------------------------------------------------- 8c4ff3da1e29ad4057417d89555a378488d8ce02f06cab9a0cda04f5b7d68bc9 python-3.9.24.0.tar.Z key_w_csum e3141cf931d2e6c1a7f151091c64c1c959c4e08a85bc95983e214b9549201dac python-3.11.14.0.tar.Z key_w_csum The checksums below were generated using the "openssl dgst -sha512 [filename]" command as the following: openssl dgst -sha512 filename ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 7655ca97e93f958ac23a68791f450b91f2d70631c1710b6d910aec78d5b219ac2049de39a970f18f8be9b7d663ea5bb8b0ae4ef2560743e8ac39109fe35970cb python-3.9.24.0.tar.Z key_4K_w_csum f859561a79d2c5be61b06d3d349318640b51302d25b30632f32b13242cd38486cdf721fef02d2566cd933bfcdadce2459b8f4cd8df40e6d7dbeeec6be7004aec python-3.11.14.0.tar.Z key_4K_w_csum These sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM AIX Support at https://ibm.com/support/ and describe the discrepancy. openssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file] openssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file] Published advisory OpenSSL signature file location: https://aix.software.ibm.com/aix/efixes/security/python_advisory17.asc.sig B. FIX AND INTERIM FIX INSTALLATION To extract the fixes from the tar file: zcat python-3.9.24.0.tar.Z | tar xvf - IMPORTANT: If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding. To preview the fix installation: installp -apYd . python3.9.base To install the fix package: installp -aXYd . python3.9.base WORKAROUNDS AND MITIGATIONS: None. =============================================================================== CONTACT US: Note: Keywords labeled as KEY in this document are used for parsing purposes. If you would like to receive AIX Security Advisories via email, please visit "My Notifications": http://www.ibm.com/support/mynotifications Contact IBM Support for questions related to this announcement: https://ibm.com/support/ For information on how to securely verify AIX security bulletins and fixes: https://www.ibm.com/support/pages/node/6985269 To obtain the OpenSSL public key that can be used to verify the signed advisories and ifixes: Download the key from our web page: https://aix.software.ibm.com/aix/efixes/security/systems_p_os_aix_security_pubkey.txt To verify the AIX/VIOS security bulletin: Published advisory OpenSSL signature file location: https://aix.software.ibm.com/aix/efixes/security/python_advisory17.asc.sig openssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file] Please contact your local IBM AIX support center for any assistance. REFERENCES: Complete CVSS v3 Guide: https://www.first.org/cvss/user-guide On-line Calculator v3: https://www.first.org/cvss/calculator/3.0 RELATED INFORMATION: Security Bulletin: AIX is affected by multiple vulnerabilities due to Python https://www.ibm.com/support/pages/node/7251902 ACKNOWLEDGEMENTS: None. CHANGE HISTORY: First Issued: Wed Nov 19 08:19:03 CST 2025 =============================================================================== *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.