curl: Out-of-bounds read in code handling HTTP/2 trailers

libcurl 7.49.0 to and including 7.57.0 contains an out bounds read in code handling HTTP/2 trailers. It was reported https://github.com/curl/curl/pull/2231 that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the...

HTTP/2 trailer out-of-bounds read

libcurl contains an out bounds read in code handling HTTP/2 trailers. It was reported that reading an HTTP/2 trailer could mess up future trailers since the stored size was one byte less than required. The problem is that the code that creates HTTP/1-like headers from the HTTP/2 trailer data once...