[
https://issues.apache.org/jira/browse/NETBEANS-5718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yiyuan GUO updated NETBEANS-5718:
---------------------------------
Priority: Critical (was: Major)
> A divide by zero bug in websocket
> ---------------------------------
>
> Key: NETBEANS-5718
> URL: https://issues.apache.org/jira/browse/NETBEANS-5718
> Project: NetBeans
> Issue Type: Bug
> Reporter: Yiyuan GUO
> Priority: Critical
> Labels: security
>
> In the file[
> webcommon/netserver/src/org/netbeans/modules/netserver/websocket/Utils.java|https://github.com/apache/netbeans/blob/39496d3400eada7398a8428f05c90589aa1f3b74/webcommon/netserver/src/org/netbeans/modules/netserver/websocket/Utils.java],
> the method _decodeNumber_ has the following
> [code|https://github.com/apache/netbeans/blob/39496d3400eada7398a8428f05c90589aa1f3b74/webcommon/netserver/src/org/netbeans/modules/netserver/websocket/Utils.java#L213]:
> {code:java}
> private static int decodeNumber(String code) {
> long number = 0;
> int spaces = 0;
> for (int i=0; i<code.length(); i++) {
> char c = code.charAt(i);
> if (c >= '0' && c <= '9') {
> number *= 10;
> number += (c-'0');
> }
> if (c == ' ') {
> spaces++;
> }
> }
> return (int)(number/spaces);
> }
> {code}
> If the variable _code_ contains no spaces, a divide by zero will happen when
> performing the division:
> {code:java}
> return (int)(number/spaces);
> {code}
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