annotate fuzzer-preauth.c @ 1715:3974f087d9c0

Disallow leading lines before the ident for server (#102) Per RFC4253 4.2 clients must be able to process other lines of data before the version string, server behavior is not defined neither with MUST/SHOULD nor with MAY. If server process up to 50 lines too - it may cause too long hanging session with invalid/evil client that consume host resources and potentially may lead to DDoS on poor embedded boxes. Let's require first line from client to be version string and fail early if it's not - matches both RFC and real OpenSSH behavior.
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Mon, 15 Jun 2020 18:22:18 +0500
parents a90fdd2d2ed8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1348
5c2899e35b63 fuzz harness
Matt Johnston <matt@ucc.asn.au>
parents:
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1 #include "fuzz.h"
5c2899e35b63 fuzz harness
Matt Johnston <matt@ucc.asn.au>
parents:
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2
5c2899e35b63 fuzz harness
Matt Johnston <matt@ucc.asn.au>
parents:
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3 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
1456
a90fdd2d2ed8 add fuzzer-preauth_nomaths
Matt Johnston <matt@ucc.asn.au>
parents: 1386
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4 return fuzz_run_preauth(Data, Size, 0);
a90fdd2d2ed8 add fuzzer-preauth_nomaths
Matt Johnston <matt@ucc.asn.au>
parents: 1386
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5 }
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d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1364
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6