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urlapi: don't accept blank port number field without scheme

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... as it makes the URL parser accept "very-long-hostname://" as a valid
host name and we don't want that. The parser now only accepts a blank
(no digits) after the colon if the URL starts with a scheme.

Reported-by: d4d on hackerone

Closes #6283
This commit is contained in:
Daniel Stenberg 2020-12-04 17:27:57 +01:00
parent 2260e0ebe6
commit abd846c374
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GPG key ID: 5CC908FDB71E12C2
4 changed files with 39 additions and 18 deletions
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2
lib/urlapi-int.h
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@ -28,7 +28,7 @@
bool Curl_is_absolute_url(const char *url, char *scheme, size_t buflen);
#ifdef DEBUGBUILD
CURLUcode Curl_parse_port(struct Curl_URL *u, char *hostname);
CURLUcode Curl_parse_port(struct Curl_URL *u, char *hostname, bool);
#endif
#endif /* HEADER_CURL_URLAPI_INT_H */