mirror of
https://github.com/protocolbuffers/protobuf-go.git
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3992ea83a2
+ This change introduce a default and configurable depth limit for proto.Unmarshal. If a message is nested deeper than the limit, unmarshaling will fail. There are two ways to nest messages. Either by having fields which are message types itself or by using groups. + The default limit is 10,000 for now. This might change in the future to align it with other language implementation (C++ and Java use 100 as limit). + If pure groups (groups that don't contain message fields) are nested deeper than the default limit the unmarshaling fails with: proto: cannot parse invalid wire-format data + Note: the configured limit does not apply to pure groups. + This change is introduced to improve security and robustness. Because unmarshaling is implemented using recursion it can lead to stack overflows for certain inputs. The introduced limit protects against this. + A secondary motivation for this limit is the alignment with other languages. Protocol buffers are a language interoperability mechanism and thus either all implementations should accept the input or all implementation should reject the input. Change-Id: I14bdb44d06e4bd1aa90d6336c2cf6446003b2037 Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/385854 Trust: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Damien Neil <dneil@google.com> Trust: Damien Neil <dneil@google.com> Reviewed-by: Nicolas Hillegeer <aktau@google.com> Reviewed-by: Chressie Himpel <chressie@google.com> |
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| wirefuzz | ||
| oss-fuzz-build.sh | ||
| README.md | ||
Fuzzing
Fuzzing support using go-fuzz.
Basic operation:
$ go install github.com/dvyukov/go-fuzz/go-fuzz
$ go install github.com/mdempsky/go114-fuzz-build
$ cd internal/fuzz/{fuzzer}
$ go114-fuzz-build google.golang.org/protobuf/internal/fuzz/{fuzzer}
$ go-fuzz
OSS-Fuzz
Fuzzers are automatically run by OSS-Fuzz.
The OSS-Fuzz configuration currently builds fuzzers in every directory under internal/fuzz. Only add fuzzers (not support packages) in this directory.
Fuzzing results are available at the OSS-Fuzz console,
under golang-protobuf.