Description
An issue was discovered in ClickHouse before 22.9.1.2603. An attacker could send a crafted HTTP request to the HTTP Endpoint (usually listening on port 8123 by default), causing a heap-based buffer overflow that crashes the process. This does not require authentication. The fixed versions are 22.9.1.2603, 22.8.2.11, 22.7.4.16, 22.6.6.16, and 22.3.12.19.
References (1)
Core 1
Core References
Vendor Advisory
https://clickhouse.com/docs/en/whats-new/security-changelog
Scores
CVSS v3
7.5
EPSS
0.0097
EPSS Percentile
57.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-787
Status
published
Products (1)
clickhouse/clickhouse
< 22.3.12.19
Published
Nov 23, 2023
Tracked Since
Feb 18, 2026