🛡️ CVE-2023-47118
🟠 CVSS 7.0 — High ✅ No Known Exploit CWE-122 NVD
7.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time. A heap buffer overflow issue was discovered in ClickHouse server. An attacker could send a specially crafted payload to the native interface exposed by default on port 9000/tcp, triggering a bug in the decompression logic of T64 codec that crashes the ClickHouse server process. This attack does not require authentication. Note that this exploit can also be triggered via HTTP protocol, however, the attacker will need a valid credential as the HTTP authentication take places first. This issue has been fixed in version 23.10.2.13-stable, 23.9.4.11-stable, 23.8.6.16-lts and 23.3.16.7-lts.

Details

Severity HIGH
CVSS Score 7.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE CWE-122
Public Exploit ✅ No
Source NVD
Published 2023-12-20
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
clickhouse 23.10 23.10.2.13
clickhouse-cloud — 23.9.2.47475

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