CVE-2023-47118: high-severity vulnerability in ClickHouse
Heap buffer overflow in T64 codec decompression
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.5%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Affected products
ClickHouse · ClickHouseRelated CVEs — ClickHouse
In the same product, most dangerous first.
CVE-2018-14671—CVE-2018-14671EPSS 3.4%CVE-2018-14670—CVE-2018-14670EPSS 1.8%CVE-2026-116366CRITICALUnauthenticated RCE vulnerability against ClickHouse ServerEPSS 1.0%CVE-2024-6873HIGHSpecially crafted request could caused undefined behaviour which may lead to Remote Code Execution.EPSS 0.7%CVE-2023-48298MEDIUMInteger underflow leading to stack overflow in FPC codec decompressionEPSS 0.6%CVE-2024-22412LOWClickHouse's Role-based Access Control is bypassed when query caching is enabled.EPSS 0.6%