CVE-2021-41135

The Cosmos-SDK is a framework for building blockchain applications in Golang. Affected versions of the SDK were vulnerable to a consensus halt due to non-deterministic behaviour in a ValidateBasic method in the x/authz module. The MsgGrant of the x/authz module contains a Grant field which includ...

EUVD-2021-2140

Malware in sbrugna...

Consensus Halt

github.com/cosmos/cosmos-sdk encounters a consensus halt. An attacker with the ability to send transactions on any chain with the authz module enabled can halt that chain using many Grants, with different but close expiration times as it uses non-deterministic behaviour in a ValidateBasic method ...

CVE-2021-41135

The Cosmos-SDK is a framework for building blockchain applications in Golang. Affected versions of the SDK were vulnerable to a consensus halt due to non-deterministic behaviour in a ValidateBasic method in the x/authz module. The MsgGrant of the x/authz module contains a Grant field which includ...

CVE-2021-41135

The Cosmos-SDK is a framework for building blockchain applications in Golang. Affected versions of the SDK were vulnerable to a consensus halt due to non-deterministic behaviour in a ValidateBasic method in the x/authz module. The MsgGrant of the x/authz module contains a Grant field which includ...

Authorization

The Cosmos-SDK is a framework for building blockchain applications in Golang. Affected versions of the SDK were vulnerable to a consensus halt due to non-deterministic behaviour in a ValidateBasic method in the x/authz module. The MsgGrant of the x/authz module contains a Grant field which includ...

CVE-2021-41135

Summary: CVE-2021-41135 affects the Cosmos-SDK’s x/authz module where Grant.ValidateBasic() non-deterministically compares the grant expiration time to the node clock, enabling a chain with the authz feature enabled to halt via crafted transactions. This is reported for affected SDK versions, wit...

CVE-2021-41135 Authz Module Non-Determinism

The Cosmos-SDK is a framework for building blockchain applications in Golang. Affected versions of the SDK were vulnerable to a consensus halt due to non-deterministic behaviour in a ValidateBasic method in the x/authz module. The MsgGrant of the x/authz module contains a Grant field which includ...