Naoto Yamaguchi

**Name of the Vulnerable Software and Affected Versions** Protobuf-c version 1.4.0 **Description** The issue is related to an invalid arithmetic shift via the `parse tag and wiretype` function in `protobuf-c/protobuf-c.c`, which can cause a Denial of Service (DoS) via unspecified vectors. This is also associated with errors in resource release. The exploitation of this issue allows a remote attacker to cause a service disruption. **Recommendations** For Protobuf-c version 1.4.0, consider disabling the `parse tag and wiretype` function as a temporary workaround until a patch is available. Restrict access to the `protobuf-c/protobuf-c.c` component to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.