Security Bulletin: IBM MaaS360 Cloud Extender VPN Module affected by vulnerabilities (CVE-2024-4603, CVE-2024--2511)

Summary

Vulnerability contained within OpenSSL (a 3rd party component) was addressed in the IBM MaaS360 VPN Module.

Vulnerability Details

CVEID:CVE-2024-4603
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by improper input validation by the EVP_PKEY_param_check() or EVP_PKEY_public_check() function. By parsing a specially crafted DSA public key or DSA parameters, a remote attacker could exploit this vulnerability to cause long delays, and results in a denial of service condition.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/290839 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2024-2511
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by improper server configuration validation. By using a specially crafted server configuration, a remote attacker could exploit this vulnerability to cause unbounded memory growth, and results in a denial of service condition.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/287215 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends customers update their systems promptly.

• Apply the IBM MaaS360 VPN module update to version 3.000.850 or greater.

Instructions to upgrade the VPN modules are located on this IBM Documentation page.

Workarounds and Mitigations

None