Security Bulletin: IBM App Connect Enterprise is vulnerable to a denial of service due to Google Protocol Buffer protobuf-cpp (CVE-2022-1941)

Summary

DFDL message parsing in IBM App Connect Enterprise is affected by a denial of service due to Google Protocol Buffer protobuf-cpp (CVE-2022-1941). The fix includes 3.21.5.

Vulnerability Details

CVEID:CVE-2022-1941
**DESCRIPTION:**protobuf is vulnerable to a denial of service, caused by a parsing vulnerability for the MessageSet type in the ProtocolBuffers. By sending a specially crafted message with multiple key-value per elements, a remote attacker could exploit this vulnerability to cause a crash.
CVSS Base score: 5.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/237081 for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability/vulnerabilities now by applying the appropriate fix to IBM App Connect Enterprise

The APAR (IT43996) is available from

IBM App Connect Enterprise v12 - Fix pack 12.0.10.0

IBM App Connect Enterprise| 11.0.0.1 - 11.0.0.20 (excluding AIX)| IT43996|

The APAR (IT43996) is available from

IBM App Connect Enterprise v11 - Fix pack 11.0.0.21

IBM App Connect Enterprise| 11.0.0.1 - 11.0.0.22 (AIX)| IT43996|

The APAR (IT43996) is available from

IBM App Connect Enterprise v11 - Fix pack 11.0.0.23

Workarounds and Mitigations

None