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https://issues.apache.org/jira/browse/KUDU-3646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Serbin updated KUDU-3646:
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Code Review: https://gerrit.cloudera.org/#/c/22573/
> Base64Decode() corrupts data by discarding trailing bytes encoded as 'A'
> ------------------------------------------------------------------------
>
> Key: KUDU-3646
> URL: https://issues.apache.org/jira/browse/KUDU-3646
> Project: Kudu
> Issue Type: Bug
> Components: hms, master, server, tserver, util
> Affects Versions: 0.7.0, 0.7.1, 0.8.0, 0.9.0, 0.9.1, 0.10.0, 1.0.0, 1.0.1,
> 1.1.0, 1.2.0, 1.3.0, 1.3.1, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.8.0, 1.7.1, 1.9.0,
> 1.10.0, 1.10.1, 1.11.0, 1.12.0, 1.11.1, 1.13.0, 1.14.0, 1.15.0, 1.16.0,
> 1.17.0, 1.17.1
> Reporter: Alexey Serbin
> Priority: Major
>
> The implementation of {{Base64Decode()}} imported from Impala in
> {{src/kudu/util/url-coding.cc}} contains a bug that leads to
> truncating/corrupting the data by discarding trailing null bytes encoded as
> 'A' in BASE64.
> For example, {{Base64Decode("YQAA", ...)}} produces {{string("a")}} instead
> of {{string("a\0\0", 3)}}. The problem doesn't manifest itself when current
> implementation of {{Base64Decode()}} is used for text/ASCII data, but using
> it for binary data (e.g., zlib-compressed) leads to unexpected results.
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