Unverified Commit 769647e7 authored by Daniel Stenberg's avatar Daniel Stenberg
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ftp: reject illegal IP/port in PASV 227 response

... by using range checks. Among other things, this avoids an undefined
behavior for a left shift that could happen on negative or very large

Closes #1997

Detected by OSS-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3694
parent 8351ab45
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