pitrou opened a new issue, #49299: URL: https://github.com/apache/arrow/issues/49299
### Describe the bug, including details regarding any error messages, version, and platform. We've received a report of a potential integer overflow when computing the total byte size of a decoded dictionary page. This doesn't seem directly exploitable because the PLAIN decoder would catch the issue before the offending code gets run, in this snippet specifically: https://github.com/apache/arrow/blob/111495870686ef269254232b876de3aee2f919b6/cpp/src/parquet/decoder.cc#L510-L513 However, we should fix as a fragility, which could become a liability if we order those steps differently in the future. ### Component(s) C++, Parquet -- 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]
