api: ensure HeaderValue keys are non-empty. #3901
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Some sites where we consume HeaderValue, e.g. in Google gRPC client library metadata, require non-empty keys as a precondition. This seems a general property; there shouldn't be any use case for a header key that is empty. Found with server_fuzz_test under oss-fuzz (issue 9373). As a bonus, also fixed another proto descriptor crash that occurs with this corpus addition due to missing proto descriptor pool entries in server_fuzz_test. Risk level: Low Testing: New server_fuzz corpus entry. Signed-off-by: Harvey Tuch <htuch@google.com>
mattklein123
approved these changes
Jul 19, 2018
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Some sites where we consume HeaderValue, e.g. in Google gRPC client library metadata, require
non-empty keys as a precondition. This seems a general property; there shouldn't be any use case for
a header key that is empty.
Found with server_fuzz_test under oss-fuzz (issue 9373). As a bonus, also fixed another proto
descriptor crash that occurs with this corpus addition due to missing proto descriptor pool entries
in server_fuzz_test.
Risk level: Low
Testing: New server_fuzz corpus entry.
Signed-off-by: Harvey Tuch htuch@google.com