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Date: Tue, 15 May 2012 19:35:09 +0000 (UTC)
From: "Rick Hillegas (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
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Subject: [jira] [Updated] (DERBY-5363) Tighten permissions of DB files to
 owner with >= JDK7
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     [ https://issues.apache.org/jira/browse/DERBY-5363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rick Hillegas updated DERBY-5363:
---------------------------------

    Attachment: releaseNote.html

Attaching a modified version of the release note. Correcting a bad href which choked the release notes generator.
                
> Tighten permissions of DB files to owner with >= JDK7
> -----------------------------------------------------
>
>                 Key: DERBY-5363
>                 URL: https://issues.apache.org/jira/browse/DERBY-5363
>             Project: Derby
>          Issue Type: Improvement
>          Components: Miscellaneous, Services, Store
>            Reporter: Dag H. Wanvik
>            Assignee: Dag H. Wanvik
>             Fix For: 10.9.0.0
>
>         Attachments: derby-5363-basic-1.diff, derby-5363-basic-1.stat, derby-5363-basic-2.diff, derby-5363-basic-2.stat, derby-5363-basic-3.diff, derby-5363-basic-3.stat, derby-5363-followup-linux.diff, derby-5363-followup-linux.diff, derby-5363-followup-unix.diff, derby-5363-followup-unix.diff, derby-5363-followup-unix.stat, derby-5363-followup.diff, derby-5363-full-1.diff, derby-5363-full-1.stat, derby-5363-full-2.diff, derby-5363-full-2.stat, derby-5363-full-3.diff, derby-5363-full-3.stat, derby-5363-full-4.diff, derby-5363-full-4.stat, derby-5363-full-5.diff, derby-5363-full-5.stat, derby-5363-limit-to-java7.diff, derby-5363-limit-to-java7.stat, derby-5363-limit-to-java7b.diff, derby-5363-limit-to-java7b.stat, derby-5363-server-1.diff, permission-5.diff, permission-5.stat, permission-6.diff, permission-6.stat, property-table.png, releaseNote.html, releaseNote.html, releaseNote.html, releaseNote.html, releaseNote.html, releaseNote.html, releaseNote.html, z.sql
>
>
> Before Java 6, files created by Derby would have the default
> permissions of the operating system context. Under Unix, this would
> depend on the effective umask of the process that started the Java VM.
> In Java 6 and 7, there are methods available that allows tightening up this
> (File.setReadable, setWritable), making it less likely that somebody
> would accidentally run Derby with a too lenient default.
> I suggest we take advantage of this, and let Derby by default (in Java
> 6 and higher) limit the visibility to the OS user that starts the VM,
> e.g. on Unix this would be equivalent to running with umask 0077. More
> secure by default is good, I think.
> We could have a flag, e.g. "derby.storage.useDefaultFilePermissions"
> that when set to true, would give the old behavior.

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