What happened
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker to cause a denial of service or potentially execute arbitrary code in the client due to a heap buffer overflow when receiving messages from a malicious queue manager or through a man-in-the-middle attack.
Affected versions
MQ: 9.1.0.0 through 9.1.0.37 LTS (semver); 9.2.0.0 through 9.2.0.43 LTS (semver); 9.3.0.0 through 9.3.0.41 LTS (semver); 9.3.0.0 through 9.3.5.1 CD (semver); 9.4.0.0 through 9.4.0.25 LTS (semver); 9.4.0.0 through 9.4.5.1 CD (semver); 10.0.0.0 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.