CVE-2023-47118

Name	CVE-2023-47118
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 (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
clickhouse (PTS)	bullseye	18.16.1+ds-7.2+deb11u1	fixed
	bookworm	18.16.1+ds-7.3	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
clickhouse	source	(unstable)	(not affected)

Notes

- clickhouse <not-affected> (Vulnerable code introduced later, was also filed as #1059261)
https://github.com/ClickHouse/ClickHouse/security/advisories/GHSA-g22g-p6q2-x39v
https://github.com/ClickHouse/ClickHouse/pull/56434