{"id":"PYSEC-2022-43055","details":"Hyperledger Fabric 2.3 allows attackers to cause a denial of service (orderer crash) by repeatedly sending a crafted channel tx with the same Channel name. NOTE: the official Fabric with Raft prevents exploitation via a locking mechanism and a check for names that already exist.","modified":"2023-08-17T03:22:31.453589Z","published":"2022-11-12T20:15:00Z","withdrawn":"2023-08-22T06:18:00Z","references":[{"type":"WEB","url":"https://github.com/hyperledger/fabric/pull/2934"},{"type":"REPORT","url":"https://github.com/SmartBFT-Go/fabric/issues/286"}],"affected":[{"package":{"name":"hyperledger","ecosystem":"PyPI","purl":"pkg:pypi/hyperledger"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0.2","0.0.3","0.0.5","0.0.6","0.0.7","0.0.8","0.0.9","0.1.0","0.1.1","0.1.2","0.1.3","0.1.4","0.1.5"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/hyperledger/PYSEC-2022-43055.yaml"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}