| Package | Affected versions | Patched versions |
|---|---|---|
| org.apache.hadoop:hadoop-common | ≥ 2.7.0, < 2.7.2< 2.6.4 | 2.7.22.6.4 |
| hadoop | = 2.7.0= 2.7.1≤ 2.6.3 |
This is an information disclosure vulnerability in Apache Hadoop before 2.6.4 and 2.7.x before 2.7.2 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.
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