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CVE-2023-47118— Heap buffer overflow in T64 codec decompression

Quick assessment

Affected
ClickHouse ClickHouse
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ClickHouse是ClickHouse公司的用于实时应用程序和分析的速度最快、资源效率最高的开源数据库。 ClickHouse存在安全漏洞，该漏洞源于存在缓冲区溢出漏洞。受影响的产品和版本：ClickHouse Cloud v23.9.2.47475之前版本；ClickHouse v23.10.2.13之前的v23.10版本，v23.3.16.7之前的v23.3版本，v23.9.4.11之前的v23.8版本，v23.8.6.16之前的v23.9版本。

CVSS 7.0 · High EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-47118

Vulnerability Information
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Vulnerability Title
Heap buffer overflow in T64 codec decompression
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
ClickHouse 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ClickHouse是ClickHouse公司的用于实时应用程序和分析的速度最快、资源效率最高的开源数据库。 ClickHouse存在安全漏洞，该漏洞源于存在缓冲区溢出漏洞。受影响的产品和版本：ClickHouse Cloud v23.9.2.47475之前版本；ClickHouse v23.10.2.13之前的v23.10版本，v23.3.16.7之前的v23.3版本，v23.9.4.11之前的v23.8版本，v23.8.6.16之前的v23.9版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ClickHouse ClickHouse < 23.3.16.7-lts -

II. Public POCs for CVE-2023-47118

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III. Intelligence Information for CVE-2023-47118

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Vendor Advisories for CVE-2023-47118 (1)

IV. Related Vulnerabilities

Same product: ClickHouse
Same vendor: ClickHouse
Same weakness: CWE-122

V. Comments for CVE-2023-47118

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