SB2025072143 - Multiple vulnerabilities in Red Hat Advanced Cluster Security for Kubernetes 4.7



SB2025072143 - Multiple vulnerabilities in Red Hat Advanced Cluster Security for Kubernetes 4.7

Published: July 21, 2025

Security Bulletin ID SB2025072143
Severity
High
Patch available
YES
Number of vulnerabilities 17
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 41% Medium 35% Low 24%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 17 secuirty vulnerabilities.


1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2025-22871)

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests when handling chunked data in net/http. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.


2) Heap-based buffer overflow (CVE-ID: CVE-2019-17543)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the LZ4_write32 when performing archiving operation with LZ4_compress_fast. A remote attacker can pass specially crafted input to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


3) Out-of-bounds read (CVE-ID: CVE-2023-40403)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in libxslt. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.


4) 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.


5) Integer overflow (CVE-ID: CVE-2024-23337)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in src/jv.c. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and perform a denial of service (DoS) attack.


6) Exposed dangerous method or function (CVE-ID: CVE-2024-53920)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper input validation in elisp-mode.el. A remote attacker can trick the victim into invoking elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code, trigger unsafe Lisp macro expansion and execute arbitrary code on the system.


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).


12) 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. 


13) 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.


14) Path traversal (CVE-ID: CVE-2025-47273)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to input validation error when processing directory traversal sequences in package_index.py. A remote attacker can trick the victim into installing a specially crafted script and overwrite arbitrary files on the system, leading to code execution.


15) Heap-based buffer overflow (CVE-ID: CVE-2025-48060)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the jv_string_vfmt() function. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.


16) 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.


17) 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. 


Remediation

Install update from vendor's website.