Hello,

The following security vulnerability was found and fixed in Apache Hadoop.

[also announced on [email protected], [email protected]]

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CVE-2016-5001: Apache Hadoop Information Disclosure

Severity: Critical

Vendor: The Apache Software Foundation

Versions Affected: Apache Hadoop 2.7.1, 2.6.3 and earlier.

Description:
This is an information disclosure vulnerability in the short-circuit reads 
feature of HDFS. A local user on an HDFS DataNode may be able to craft a block 
token that grants unauthorized read access to random files by guessing certain 
fields in the token.

Mitigation:
Users on 2.7.x should upgrade to 2.7.2 or later.
Users on 2.6.x or earlier releases should upgrade to 2.6.4 or later.

Impact:
A local user may be able to gain unauthorized read access to files.

Credit:
This issue was reported by Kihwal Lee of Yahoo Inc.


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