CVE-2026-64318

In the Linux kernel, the following vulnerability has been resolved: partitions: aix: bound the ppcount scan to the ppe array aixpartition reads the physical volume descriptor into a fixed-size struct pvd and then scans its physical-partition-extent array: int numpps = be16tocpupvd-ppcount; ... fo...

CVE-2026-64318 partitions: aix: bound the pp_count scan to the ppe array

In the Linux kernel, the following vulnerability has been resolved: partitions: aix: bound the ppcount scan to the ppe array aixpartition reads the physical volume descriptor into a fixed-size struct pvd and then scans its physical-partition-extent array: int numpps = be16tocpupvd-ppcount; ... fo...

EUVD-2026-49030

In the Linux kernel, the following vulnerability has been resolved: partitions: aix: bound the ppcount scan to the ppe array aixpartition reads the physical volume descriptor into a fixed-size struct pvd and then scans its physical-partition-extent array: int numpps = be16tocpupvd-ppcount; ... fo...

CVE-2026-64318

Summary (CVE-2026-64318) : In the Linux kernel, the partitions code for AIX on the PPC/IBM layout could read past the end of the ppe[] array. The function aix_partition() loads a fixed-size pvd and iterates up to the on-disk pp_count, which could exceed the allocated 1016 entries, leading to pote...

PT-2026-64539

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the aix partition function where the system reads a physical volume descriptor into a fixed-size struct pvd and scans its physical-partition-extent array. The loop...

Security Bulletin: AIX is vulnerable to denial of service due to zlib (CVE-2026-27171)

Summary A vulnerability in zlib could allow a remote attacker to cause a denial of service CVE-2026-27171. AIX uses zlib as part of its data compression functions. Vulnerability Details CVEID:CVE-2026-27171 DESCRIPTION: zlib before 1.3.2 allows CPU consumption via crc32combine64 and...

Security Bulletin: Multiple vulnerabilities impact AIX due to OpenSSL

Summary Vulnerabilities in OpenSSL could cause denial of service CVE-2026-9076, CVE-2026-42767, CVE-2026-42766, heap buffer overflow CVE-2026-7383, crash and heap corruption CVE-2026-45447, forge authentication CVE-2026-45446, loss of confidentiality CVE-2026-45445, credential exposure...

AIX is vulnerable to denial of service due to zlib (CVE-2026-27171)

IBM SECURITY ADVISORY First Issued: Wed Jul 22 02:19:43 CDT 2026 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/zlibadvisory3.asc Security Bulletin: AIX is vulnerable to denial of service due to zlib CVE-2026-27171...

Security Bulletin: Multiple vulnerabilities in python affects AIX/VIOS.

Summary Integer overflow and use after may cause memory corruption and denial of service. Vulnerability Details CVEID:CVE-2026-56403 DESCRIPTION: libexpat before 2.8.2 has an integer overflow in storeAtts. CWE:CWE-190: Integer Overflow or Wraparound CVSS Source: NVD CVSS Base score: 6.9 CVSS...

Security Bulletin: Multiple vulnerabilities in Python affects AIX/VIOS.

Summary Integer overflow and use after may cause memory corruption and denial of service. Vulnerability Details CVEID:CVE-2026-56403 DESCRIPTION: libexpat before 2.8.2 has an integer overflow in storeAtts. CWE:CWE-190: Integer Overflow or Wraparound CVSS Source: NVD CVSS Base score: 6.9 CVSS...

Security Bulletin: Vulnerabilities in python (CVE-2026-56131, CVE-2026-56132) affects AIX/VIOS.

Summary Use after free and heap buffer overflow may casue denial of service. Vulnerability Details CVEID:CVE-2026-56131 DESCRIPTION: libexpat before 2.8.2 lacks handler call depth tracking for calls to XMLResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can...

Security Bulletin: Vulnerability in python (CVE-2026-41080) affects AIX/VIOS.

Summary Denial of service through hash flooding via a crafted XML document. Vulnerability Details CVEID:CVE-2026-41080 DESCRIPTION: libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document. CWE:CWE-331: Insufficient Entropy CVSS Source:...

Security Bulletin: Vulnerability in python (CVE-2026-45186) affects AIX/VIOS.

Summary Denial of service via moderately sized crafted XML input. Vulnerability Details CVEID:CVE-2026-45186 DESCRIPTION: In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input. CWE:CWE-407:...

Multiple vulnerabilities in Python affect AIX

IBM SECURITY ADVISORY First Issued: Tue Jul 14 06:03:19 CDT 2026 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/pythonadvisory20.asc Security Bulletin: Multiple vulnerabilities in Python affect AIX...

Security Bulletin: Vulnerability in BIND (CVE-2026-3592, CVE-2026-5946) affects AIX/ VIOS.

Summary CVE-2026-3592: Resolver queries a specially crafted zone containing self-pointed glue records, causing disproportionate resource consumption. CVE-2026-5946: Specially crafted DNS messages using non-IN classes e.g., CHAOS, HESIOD, ANY, NONE trigger assertion failures, terminating the named...

Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl (CVE-2026-1965, CVE-2026-3783, CVE-2026-3784)

Summary Multiple vulnerabilities in the curl/libcurl are related to unauthorized access. Vulnerability Details CVEID:CVE-2026-1965 DESCRIPTION: libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool o...

Security Bulletin: Vulnerability impacts AIX due to cURL libcurl (CVE-2026-5545).

Summary A logic error allows libcurl to reuse an existing Negotiate-authenticated connection even when a new request specifies different credentials for the same server. Vulnerability Details CVEID:CVE-2026-5545 DESCRIPTION: libcurl might in some circumstances reuse the wrong connection when aske...

Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl (CVE-2025-14819, CVE-2026-1965, CVE-2026-3783, CVE-2026-3784, CVE-2026-5545)

Summary Multiple vulnerabilities in the curl/libcurl are related to TLS certificate validation logic and unauthorized actions. Vulnerability Details CVEID:CVE-2025-14819 DESCRIPTION: When doing TLS related transfers with reused easy or multi handles and altering the CURLSSLOPTNOPARTIALCHAIN optio...

Multiple vulnerabilities impacts AIX due to cURL libcurl (CVE-2025-14819 CVE-2026-1965 CVE-2026-3783 CVE-2026-3784 CVE-2026-5545)

IBM SECURITY ADVISORY First Issued: Fri Jun 26 01:16:13 CDT 2026 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/curladvisory10.asc Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl CVE-2025-14819, CVE-2026-196...

CVE-2026-56315

CVE-2026-56315 affects the Python tool picklescan until version 1.0.4, which fails to block imports from at least seven standard library modules (e.g., uuid, _osx_support, _aix_support, _pyrepl.pager, imaplib). This allows adversaries to craft pickle files that import these unblocked modules to t...