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https://issues.apache.org/jira/browse/ZOOKEEPER-2146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14379705#comment-14379705
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Hudson commented on ZOOKEEPER-2146:
-----------------------------------
FAILURE: Integrated in ZooKeeper-trunk #2640 (See
[https://builds.apache.org/job/ZooKeeper-trunk/2640/])
ZOOKEEPER-2146 BinaryInputArchive readString should check length before
allocating memory (Hongchao Deng via michim) (michim:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1669060)
* /zookeeper/trunk/CHANGES.txt
* /zookeeper/trunk/src/java/main/org/apache/jute/BinaryInputArchive.java
* /zookeeper/trunk/src/java/test/org/apache/jute
* /zookeeper/trunk/src/java/test/org/apache/jute/BinaryInputArchiveTest.java
> BinaryInputArchive readString should check length before allocating memory
> --------------------------------------------------------------------------
>
> Key: ZOOKEEPER-2146
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2146
> Project: ZooKeeper
> Issue Type: Bug
> Reporter: Hongchao Deng
> Assignee: Hongchao Deng
> Fix For: 3.5.1, 3.6.0
>
> Attachments: ZOOKEEPER-2146.patch, ZOOKEEPER-2146.patch,
> ZOOKEEPER-2146.patch, ZOOKEEPER-2146.patch, ZOOKEEPER-2146.patch
>
>
> I recently observed a problem caused by malformed packets. ZK server crashed
> because of OutOfMemoryError.
> The reason is BinaryInputArchive didn't check the length before allocating
> memory in readString():
> {code}
> public String readString(String tag) throws IOException {
> int len = in.readInt();
> if (len == -1) return null;
> byte b[] = new byte[len];
> ...
> {code}
> I suggest to add the same check as in readBuffer.
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