http: try parsing Retry-After: as a number first #9718
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Since the date parser allows YYYYMMDD as a date format (due to it being a bit too generic for parsing this particular header), a large integer number could wrongly match that pattern and cause the parser to generate a wrong value. No date format accepted for this header starts with a decimal number, so by reversing the check and trying a number first we can deduct that if that works, it was not a date. Reported-by Trail of Bits
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Since the date parser allows YYYYMMDD as a date format (due to it being a bit too generic for parsing this particular header), a large integer number could wrongly match that pattern and cause the parser to generate a wrong value.
No date format accepted for this header starts with a decimal number, so by reversing the check and trying a number first we can deduct that if that works, it was not a date.
Reported-by Trail of Bits