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.

Score

CVSS 3.1 6.5 Medium

Status

Modified - reefs@jfrog.com

Published

2022-03-14

Last modified

2024-08-04

Weaknesses

CWE-369

Affected products

• Clickhouse (Clickhouse)
• Clickhouse (Yandex)

References

• https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms