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handle NUL/corrupt String in jspb.BinaryDecoder.prototype.readString #190

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handle NUL/corrupt String in jspb.BinaryDecoder.prototype.readString #190

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9 changes: 8 additions & 1 deletion binary/decoder.js
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Original file line number Diff line number Diff line change
Expand Up @@ -891,7 +891,14 @@ jspb.BinaryDecoder.prototype.readString = function(length) {
var result = '';
while (cursor < end) {
var c = bytes[cursor++];
if (c < 128) { // Regular 7-bit ASCII.
if (c == 0) {
// NUL char should not occur in the middle of a String, abort decode
// We may get back in sync by avoiding malformed strings or there
// may be corruption in whatever was stored as text to begin with.
result += goog.crypt.byteArrayToString(codeUnits);
cursor=end;
continue;
} else if (c < 128) { // Regular 7-bit ASCII.
codeUnits.push(c);
} else if (c < 192) {
// UTF-8 continuation mark. We are out of sync. This
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