Security Bulletin: IBM MQ Appliance is affected by multiple open source vulnerabilities.

Summary

IBM MQ Appliance has addressed multiple open source vulnerabilities (CVE-2020-12762, CVE-2021-33631, CVE-2023-6931, CVE-2024-1086).

Vulnerability Details

CVEID:CVE-2020-12762
**DESCRIPTION:**json-c could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow and out-of-bounds write. By persuading a victim to run a specially crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/182094 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2021-33631
**DESCRIPTION:**openEuler is vulnerable to a denial of service, caused by an integer overflow. A local authenticated attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/280351 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-6931
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by a heap out-of-bounds write flaw in the Performance Events system component. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/275563 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2024-1086
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by use-after-free flaw in the nft_verdict_init() function in the Netfilter subsystem. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/281122 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

This vulnerability is addressed under APAR IT46205

IBM strongly recommends addressing the vulnerability now.

IBM MQ Appliance version 9.3 LTS

Apply IBM MQ Appliance 9.3.0.20 fix pack, or later firmware.

IBM MQ Appliance version 9.3 CD

Apply IBM MQ Appliance 9.3.5.2 cumulative security update, or later firmware.

Workarounds and Mitigations

None