Vulnerability · Published Mar 14, 2022 · Assigned by JFROG
CVE-2021-42391
Medium 6.5
In plain English
A medium-severity security flaw in clickhouse from yandex. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities).
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.4%top 27.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Divide-by-zero in Clickhouse's 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| yandex | clickhouse | unspecified – before 21.10.2.15-stable |
Weakness: CWE-369