CVE-2021-42391

Name of the Vulnerable Software and Affected Versions ClickHouse (affected versions not specified)

Description The issue is related to a divide-by-zero error in ClickHouse's Gorilla compression codec. This occurs when parsing a malicious query, where the first byte of the compressed buffer is used in a modulo operation without being checked for 0.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.