CVE-2023-47118

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.