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Posted to commits@cassandra.apache.org by "Jordan West (Jira)" <ji...@apache.org> on 2020/02/07 21:37:00 UTC
[jira] [Updated] (CASSANDRA-15560) Change
io.compressor.LZ4Compressor to LZ4SafeDecompressor
[ https://issues.apache.org/jira/browse/CASSANDRA-15560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jordan West updated CASSANDRA-15560:
------------------------------------
Change Category: Quality Assurance
Complexity: Low Hanging Fruit
Fix Version/s: 4.0-rc
Status: Open (was: Triage Needed)
> Change io.compressor.LZ4Compressor to LZ4SafeDecompressor
> ---------------------------------------------------------
>
> Key: CASSANDRA-15560
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15560
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Compression
> Reporter: Jordan West
> Assignee: Jordan West
> Priority: Normal
> Fix For: 4.0-rc
>
>
> CASSANDRA-15556 and related tickets showed that LZ4FastDecompressor can crash the JVM and that LZ4SafeDecompressor performs better w/o the crash risk — its also not deprecated. While we protect ourselves by checksumming the compressed data but that doesn’t mean we should leave deprecated code that can segfault the jvm (providing a potential DDOS vector among other things) in crucial places like io.compress.
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