Added hardened boundary condition checks. #71
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graebm
reviewed
Jan 5, 2022
bretambrose
approved these changes
Mar 17, 2022
| header.header_value_type = (enum aws_event_stream_header_value_type) * buffer; | ||
| buffer++; | ||
| aws_byte_cursor_read_u8(&buffer_cur, &header.header_name_len); | ||
| AWS_RETURN_ERROR_IF(header.header_name_len <= INT8_MAX, AWS_ERROR_EVENT_STREAM_MESSAGE_INVALID_HEADERS_LEN); |
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I stared at this macro name thinking "what the hell?" for about 5 minutes before looking up the definition and seeing the !
Unfortunate.
sertonix
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to sertonix/aws-c-event-stream
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Oct 10, 2025
Writing to the first byte of a multi-byte int value is inconsistent between endianess. Using a uint8_t value in between allows for correct results on big-endian systems as well. Fixes 53691ff Added hardened boundary condition checks. (awslabs#71)
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added some assertions and error checking. Also removed some OOM handling since that's no longer possible.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.