SB20261022297 - Multiple vulnerabilities in IBM Guardium Data Protection

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Main Vulnerability Database SB20261022297

SB20261022297 - Multiple vulnerabilities in IBM Guardium Data Protection

Published: October 22, 2026

Security Bulletin ID SB20261022297
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 33% Medium 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Improper Certificate Validation (CVE-ID: CVE-2026-50010)

CWE-ID: CWE-295 - Improper Certificate Validation

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper certificate validation in X509TrustManagerWrapper within netty-handler when establishing client TLS connections with a user-supplied plain X509TrustManager. A remote attacker can present a certificate for an unexpected hostname to disclose sensitive information.

The issue occurs because hostname verification is not performed in this configuration, even when HTTPS endpoint identification is expected by default.


2) Incorrect Comparison (CVE-ID: CVE-2026-44249)

CWE-ID: CWE-697 - Incorrect Comparison

CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass IPv6 subnet access controls.

The vulnerability exists due to incorrect comparison in IpSubnetFilterRule.compareTo() when evaluating IPv6 subnet rules. A remote attacker can use a valid public IP address to bypass IPv6 subnet access controls.

The issue is caused by applying a bitwise AND operation to the configured networkAddress instead of the subnetMask.


3) Uncontrolled Memory Allocation (CVE-ID: CVE-2026-45416)

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled memory allocation in SslClientHelloHandler.decode() when processing a TLS ClientHello that does not fit in the first record. A remote attacker can send a specially crafted ClientHello with a large handshake length to cause a denial of service.

The issue is exposed by the commonly used SniHandler and AbstractSniHandler constructors because they disable the client hello length guard and do not schedule a handshake timeout.


Remediation

Install update from vendor's website.

References