SB2023061313 - Multiple vulnerabilities in IBM Cloud Kubernetes Service

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Main Vulnerability Database SB2023061313

SB2023061313 - Multiple vulnerabilities in IBM Cloud Kubernetes Service

Published: June 13, 2023

Security Bulletin ID SB2023061313
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper Preservation of Permissions (CVE-ID: CVE-2023-28642)

CWE-ID: CWE-281 - Improper preservation of permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


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

The vulnerability exists due to improper preservation of permissions in the AppArmor and SELinux when /proc inside the container is symlinked with a specific mount configuration. A remote attacker can gain access to the target application.


2) Improper access control (CVE-ID: CVE-2023-27561)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to improper access restrictions in the libcontainer/rootfs_linux.go. A local user can gain elevated privileges on the target system.


Remediation

Install update from vendor's website.

References