cvedb.io
CVE-2021-42391
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2022-03-14T23:15:08.113 · Last modified 2026-06-17T04:09:45.290

Summary

Divide-by-zero in Clickhouse's Gorilla compression codec when parsing a malicious query. The first byte of the compressed buffer is used in a modulo operation without being checked for 0.

Affected products

clickhouse — clickhouse

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.