From d8ca1f6c8de8c54131b5d9e8e15167cd48740bf3 Mon Sep 17 00:00:00 2001 From: unknown Date: Fri, 11 Jan 2008 13:20:03 +0100 Subject: Bug#33814 - yassl problems extra/yassl/src/template_instnt.cpp: new template instantiation --- extra/yassl/src/handshake.cpp | 5 +++++ extra/yassl/src/template_instnt.cpp | 1 + extra/yassl/src/yassl_imp.cpp | 11 ++++++++++- 3 files changed, 16 insertions(+), 1 deletion(-) (limited to 'extra') diff --git a/extra/yassl/src/handshake.cpp b/extra/yassl/src/handshake.cpp index 0cd0dfe9c7c..15be8eeb65d 100644 --- a/extra/yassl/src/handshake.cpp +++ b/extra/yassl/src/handshake.cpp @@ -527,6 +527,11 @@ void ProcessOldClientHello(input_buffer& input, SSL& ssl) input.read(len, sizeof(len)); uint16 randomLen; ato16(len, randomLen); + if (ch.suite_len_ > MAX_SUITE_SZ || sessionLen > ID_LEN || + randomLen > RAN_LEN) { + ssl.SetError(bad_input); + return; + } int j = 0; for (uint16 i = 0; i < ch.suite_len_; i += 3) { diff --git a/extra/yassl/src/template_instnt.cpp b/extra/yassl/src/template_instnt.cpp index f82f7924359..fe3a251b865 100644 --- a/extra/yassl/src/template_instnt.cpp +++ b/extra/yassl/src/template_instnt.cpp @@ -101,6 +101,7 @@ template void ysArrayDelete(unsigned char*); template void ysArrayDelete(char*); template int min(int, int); +template uint16 min(uint16, uint16); template unsigned int min(unsigned int, unsigned int); template unsigned long min(unsigned long, unsigned long); } diff --git a/extra/yassl/src/yassl_imp.cpp b/extra/yassl/src/yassl_imp.cpp index 0bc95f64abc..b43d9c27355 100644 --- a/extra/yassl/src/yassl_imp.cpp +++ b/extra/yassl/src/yassl_imp.cpp @@ -621,6 +621,10 @@ void HandShakeHeader::Process(input_buffer& input, SSL& ssl) } uint len = c24to32(length_); + if (len > input.get_remaining()) { + ssl.SetError(bad_input); + return; + } hashHandShake(ssl, input, len); hs->set_length(len); @@ -1391,10 +1395,15 @@ input_buffer& operator>>(input_buffer& input, ClientHello& hello) // Suites byte tmp[2]; + uint16 len; tmp[0] = input[AUTO]; tmp[1] = input[AUTO]; - ato16(tmp, hello.suite_len_); + ato16(tmp, len); + + hello.suite_len_ = min(len, static_cast(MAX_SUITE_SZ)); input.read(hello.cipher_suites_, hello.suite_len_); + if (len > hello.suite_len_) // ignore extra suites + input.set_current(input.get_current() + len - hello.suite_len_); // Compression hello.comp_len_ = input[AUTO]; -- cgit v1.2.1