rdblue opened a new issue, #16459: URL: https://github.com/apache/iceberg/issues/16459
> This issue was reported to the private Apache Iceberg security mailing list. The submitter is being kept anonymous because the report was sent to a private list. After review, the issue is not considered a serious vulnerability that needs to be kept private, so it is being filed publicly here for tracking and resolution. > > Note: this submission was generated by AI. Please review its claims and source references carefully before acting on them. # Summary The packed INT96 dictionary decode path writes at row indexes instead of byte offsets, corrupting output and potentially surfacing stale bytes from prior batches. # Affected Maven coordinates * primary shipped client artifact: `org.apache.iceberg:iceberg-arrow` # Attacker prerequisites * a workload that hits the affected vectorized decode path * vector reuse or multi-batch execution so the stale-byte behavior matters # Impact * Returned timestamp values can be corrupted. * When vector reuse is enabled, rows that were not fully overwritten can retain bytes from a prior batch. * That creates a narrow stale-data exposure path in addition to the integrity bug. # Proof status Source review only. The issue is visible directly from source. # Key source references * org.apache.iceberg.arrow.vectorized.parquet.VectorizedParquetDefinitionLevelReader * org.apache.iceberg.arrow.vectorized.parquet.VectorizedDictionaryEncodedParquetValuesReader Current severity assessment [2]: Moderate [1] https://iceberg.apache.org/security/ [2] https://security.apache.org/blog/severityrating/ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
