SB2022090903 - Multiple vulnerabilities in IBM Integration Bus and IBM App Connect Enterprise

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Main Vulnerability Database SB2022090903

SB2022090903 - Multiple vulnerabilities in IBM Integration Bus and IBM App Connect Enterprise

Published: September 9, 2022 Updated: June 7, 2024

Security Bulletin ID SB2022090903
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Security features bypass (CVE-ID: CVE-2021-3450)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in implementation of the X509_V_FLAG_X509_STRICT flag allows an attacker to overwrite a valid CA certificate using any non-CA certificate in the chain. As a result, a remote attacker can perform MitM attack.


2) NULL pointer dereference (CVE-ID: CVE-2021-3449)

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

The vulnerability exists due to a NULL pointer dereference error when processing TLSv1.2 renegotiations. A remote attacker can send a maliciously crafted renegotiation ClientHello message, which omits the signature_algorithms extension but includes a signature_algorithms_cert extension, trigger a NULL pointer dereference error and crash the server.

Remediation

Install update from vendor's website.

References