CVE-2021-42389

Divide-by-zero in Clickhouse's Delta 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...

Multiple Flaws Uncovered in ClickHouse OLAP Database System for Big Data

Researchers have disclosed seven new security vulnerabilities in an open-source database management system solution called ClickHouse that could be weaponized to crash the servers, leak memory contents, and even lead to the execution of arbitrary code. "The vulnerabilities require authentication,...

CVE-2021-42389

Divide-by-zero in Clickhouse's Delta 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...

CVE-2021-42389

Divide-by-zero in Clickhouse's Delta 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...

CVE-2021-42389

Divide-by-zero in Clickhouse's Delta 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...

CVE-2021-42389

CVE-2021-42389 affects ClickHouse’s Delta compression codec. The vulnerability is a divide-by-zero: during parsing a malicious query, the first byte of the compressed buffer is used in a modulo operation without checking for 0. The issue is tied to the Delta codec, as described in multiple source...