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Merge pull request #2228 from JacobBarthelmeh/Fuzzer

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sanity check on buffer size before copy
This commit is contained in:
toddouska
2019-05-07 11:20:35 -07:00
committed by GitHub
parent a36296a959 b1442633dd
commit dcd6e02de9
1 changed files with 5 additions and 0 deletions
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5
src/tls13.c
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@ -3896,6 +3896,11 @@ int DoTls13ClientHello(WOLFSSL* ssl, const byte* input, word32* inOutIdx,
if (sessIdSz != ID_LEN && sessIdSz != 0) if (sessIdSz != ID_LEN && sessIdSz != 0)
return INVALID_PARAMETER; return INVALID_PARAMETER;
#endif #endif
if (sessIdSz + i > helloSz) {
return BUFFER_ERROR;
}
ssl->session.sessionIDSz = sessIdSz; ssl->session.sessionIDSz = sessIdSz;
if (sessIdSz == ID_LEN) { if (sessIdSz == ID_LEN) {
XMEMCPY(ssl->session.sessionID, input + i, sessIdSz); XMEMCPY(ssl->session.sessionID, input + i, sessIdSz);