TenderMint from version 0.33.0 and before version 0.33.6 allows block proposers to include signatures for the wrong block. This may happen naturally if you start a network, have it run for some time and restart it (**without changing chainID**). A malicious block proposer (even with a minimal amount of stake) can use this vulnerability to completely halt the network. This issue is fixed in Tendermint 0.33.6 which checks all the signatures are for the block with 2/3+ majority before creating a commit.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2020-07-02T17:05:15

Updated: 2024-08-04T13:08:21.884Z

Reserved: 2020-06-25T00:00:00

Link: CVE-2020-15091

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-07-02T17:15:12.547

Modified: 2020-07-08T19:16:14.410

Link: CVE-2020-15091

cve-icon Redhat

No data.