Main Vulnerability Database SB2022090701

SB2022090701 - Denial of service in IBM DataPower Gateway

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

Security Bulletin ID SB2022090701

Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Remote access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 security vulnerability.

1) 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

https://www.ibm.com/blogs/psirt/security-bulletin-potential-dos-in-ibm-datapower-gateway/"
https://www.ibm.com/blogs/psirt/security-bulletin-potential-dos-in-ibm-datapower-gateway/</a> <a
https://www.ibm.com/support/pages/node/6481675"
https://www.ibm.com/support/pages/node/6481675</a>