CVE Vulnerabilities

CVE-2021-42391

Divide By Zero

Published: Mar 14, 2022 | Modified: Mar 22, 2022

CVSS 3.x

6.5

MEDIUM

Source:

NVD

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

CVSS 2.x

5 MEDIUM

RedHat/V2

RedHat/V3

Ubuntu

Additional information

NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-42391
CWE	https://cwe.mitre.org/data/definitions/369.html

Divide-by-zero in Clickhouses 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.

Weakness

The product divides a value by zero.

Affected Software

Name	Vendor	Start Version	End Version
Clickhouse	Yandex	*	21.10.2.15 (excluding)

References

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

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