CVE-2021-42390

MEDIUM

6.5

Description

Divide-by-zero in Clickhouse's DeltaDouble 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 Details

CVSS v3.1 Score6.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/14/2022

Last Modified6/25/2025

Sourcenvd

Honeypot Sightings0

Affected Products

clickhouse:clickhouse

Weaknesses (CWE)

CWE-369CWE-369

References

https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms(reefs@jfrog.com)

https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.