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Bug 665518 - Websocket enforce high bit of 64 bit length r=biesi

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This commit is contained in:
Patrick McManus 2011-06-21 10:49:04 -04:00
parent e86b1a09dc
commit 3c4eed0994
1 changed files with 9 additions and 0 deletions
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9
netwerk/protocol/websocket/nsWebSocketHandler.cpp
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@ -715,6 +715,15 @@ nsWebSocketHandler::ProcessInput(PRUint8 *buffer, PRUint32 count)
framingLength += 8;
if (avail < framingLength)
break;
if (mFramePtr[2] & 0x80) {
// Section 4.2 says that the most significant bit MUST be
// 0. (i.e. this is really a 63 bit value)
LOG(("WebSocketHandler:: high bit of 64 bit length set"));
AbortSession(NS_ERROR_ILLEGAL_VALUE);
return NS_ERROR_ILLEGAL_VALUE;
}
// copy this in case it is unaligned
PRUint64 tempLen;
memcpy(&tempLen, mFramePtr + 2, 8);