SB2025081341 - Multiple vulnerabilities in IBM CICS TX Advanced
Published: August 13, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 11 secuirty vulnerabilities.
1) Improper access control (CVE-ID: CVE-2025-6020)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper access restrictions within the pam_namespace module when handling user-controlled paths. A local user can use specially crafted symlinks and race conditions to execute arbitrary code as root.
2) Out-of-bounds read (CVE-ID: CVE-2025-32414)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to an out-of-bounds read that occurs in the Python API (Python bindings) because of an incorrect return value. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2025-49794)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the xmlSchematronGetNode() function when processing XPath expressions in Schematron schema elements schematron.c. A remote attacker can pass specially crafted XML input to the application and perform a denial of service (DoS) attack.
4) Type Confusion (CVE-ID: CVE-2025-49796)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a type confusion error within the xmlSchematronFormatReport() function when processing sch:name elements in schematron.c. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and crash the application.
5) Integer overflow (CVE-ID: CVE-2025-6021)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the xmlBuildQName() function in tree.c . A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) Path traversal (CVE-ID: CVE-2024-12718)
The vulnerability allows a remote attacker to modify arbitrary files on the system.
The vulnerability exists due to input validation error in the tarfile module. A remote attacker can pass a specially crafted archive to the application and modify some file metadata (e.g. last modified) with filter="data" or file permissions (chmod) with filter="tar" of files outside the extraction directory.
7) Link following (CVE-ID: CVE-2025-4138)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to an insecure link following issue when extracting data from an archive in the tarfile module. A remote attacker can pass a specially crafted archive to the application and overwrite arbitrary files outside the destination directory during extraction with filter="data"..
8) Link following (CVE-ID: CVE-2025-4330)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to an insecure link following issue when extracting data from an archive in the tarfile module. A remote attacker can pass a specially crafted archive to the application and overwrite arbitrary files outside the destination directory.
9) Expected behavior violation (CVE-ID: CVE-2025-4435)
The vulnerability allows a remote attacker to change expected behavior.
The vulnerability exists due to an error when using a TarFile.errorlevel = 0 and extracting with a filter the documented behavior. A remote attacker can force the application to extract files that were meant to be skipped.
10) Path traversal (CVE-ID: CVE-2025-4517)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to input validation error in the tarfile module when extracting files from an archive with filter="data". A remote attacker can pass specially crafted archive to the application and write files to arbitrary locations on the system outside the extraction directory.
11) Untrusted search path (CVE-ID: CVE-2025-4802)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to usage of an untrusted LD_LIBRARY_PATH environment variable. A local user can use the LD_LIBRARY_PATH environment variable to point to a malicious binary and execute arbitrary code with escalated privileges.
The vulnerability affects statically linked setuid binaries that call dlopen (including internal dlopen calls after setlocale or calls to NSS functions such as getaddrinfo).
Remediation
Install update from vendor's website.