Version of commons.io used has a high-severity vulnerability

[kjohn1922]

Found when scanning an image with JFrog XRAY that pulls in kafka-connect-storage-common.

XRAY-125253
Severity: High
Type: Security
Summary: Apache Commons IO input/InfiniteCircularInputStream.java InfiniteCircularInputStream::read() Function Buffer Handling Divide-by-zero DoS
Description: Apache Commons IO contains a divide-by-zero condition in the InfiniteCircularInputStream::read() function in input/InfiniteCircularInputStream.java that is triggered when the input buffer is of size 0. This may allow a context-dependent attacker to crash a process linked against the library.
Version: 2.7
Fix version: 2.8.0

https://issues.apache.org/jira/browse/IO-675

kafka-connect-storage-common is using version 2.7 of commons.io, as seen here: https://github.com/confluentinc/kafka-connect-storage-common/blob/master/pom.xml#L70

Solution: Upgrade dependency version to 2.8.0 or later.

[janjwerner-confluent]

Thank you for bringing this to our attention.