module: github.com/tendermint/tendermint
package: github.com/tendermint/tendermint/types
versions:
  - introduced: v0.33.0
    fixed: v0.34.0-dev1.0.20200702134149-480b995a3172
description: |
  Proposed commits may contain signatures for blocks not contained within the commit. Instead of skipping
  these signatures, they cause failure during verification. A malicious proposer can use this to force
  consensus failures.
published: 2021-04-14T12:00:00Z
cve: CVE-2020-15091
credit: Neeraj Murarka
symbols:
  - VoteSet.MakeCommit
links:
  pr: https://github.com/tendermint/tendermint/pull/5426
  commit: https://github.com/tendermint/tendermint/commit/480b995a31727593f58b361af979054d17d84340
  context:
    - https://github.com/tendermint/tendermint/issues/4926