CVE-2021-3121 – gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation

https://notcve.org/view.php?id=CVE-2021-3121

An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue. Se detectó un problema en GoGo Protobuf versiones anteriores a 1.3.2. El archivo plugin/unmarshal/unmarshal.go carece de determinada comprobación de índice, también se conoce como el problema "skippy peanut butter" A flaw was found in github.com/gogo/protobuf before 1.3.2 that allows an out-of-bounds access when unmarshalling certain protobuf objects. This flaw allows a remote attacker to send crafted protobuf messages, causing panic and resulting in a denial of service. The highest threat from this vulnerability is to availability. • https://discuss.hashicorp.com/t/hcsec-2021-23-consul-exposed-to-denial-of-service-in-gogo-protobuf-dependency/29025 https://github.com/gogo/protobuf/commit/b03c65ea87cdc3521ede29f62fe3ce239267c1bc https://github.com/gogo/protobuf/compare/v1.3.1...v1.3.2 https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff%40%3Cnotifications.skywalking.apache.org%3E https://lists.apache.org/thread.html/r88d69555cb74a129a7bf84838073b61259b4a3830190e05a3b87994e%40%3Ccommits.pulsar.apache.org%3E https://lists.apache.org&#x • CWE-129: Improper Validation of Array Index •