SB2023090831 - Multiple vulnerabilities in IBM i
Published: September 8, 2023 Updated: January 9, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Untrusted search path (CVE-ID: CVE-2023-38408)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to usage of an insecure search path within the PKCS#11 feature in ssh-agent. A remote attacker can trick the victim into connecting to a malicious SSH server and execute arbitrary code on the system, if an agent is forwarded to an attacker-controlled system.
Note, this vulnerability exists due to incomplete fix for #VU2015 (CVE-2016-10009).
2) Resource management error (CVE-ID: CVE-2023-3817)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when checking the long DH keys. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
3) Resource management error (CVE-ID: CVE-2023-2650)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when processing OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS subsystems with no message size limit. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.
4) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2023-0465)
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to an error when validating certificate policies in leaf certificates. A remote attacker that controls a malicious CA server can issue a certificate that will be validated by the application.
Remediation
Install update from vendor's website.