CVE catalog
CVE-2023-48704
clickhouse: CVE-2023-48704
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.50% · Oct 25, 2026
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 Gorilla codec that crashes the ClickHouse server process. This attack does not require authentication. This issue has been addressed in ClickHouse Cloud version 23.9.2.47551 and ClickHouse versions 23.10.5.20, 23.3.18.15, 23.8.8.20, and 23.9.6.20.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | clickhouse | bookworm | 18.16.1+ds-7.3 | not affected |
| Ubuntu | clickhouse | 20.04 | 18.16.1+ds-5 | vulnerable |
| Ubuntu | clickhouse | 20.04 | 18.16.1+ds-5ubuntu1 | vulnerable |
| Ubuntu | clickhouse | 20.04 | 18.16.1+ds-5ubuntu2 | vulnerable |
| Ubuntu | clickhouse | 20.04 | 18.16.1+ds-6ubuntu1 | vulnerable |
| Ubuntu | clickhouse | 20.04 | 18.16.1+ds-7 | vulnerable |
| Ubuntu | clickhouse | 20.04 | 18.16.1+ds-7ubuntu0.1 | vulnerable |
| Ubuntu | clickhouse | 24.04 | 18.16.1+ds-7.4 | vulnerable |
| Ubuntu | clickhouse | 24.04 | 18.16.1+ds-7.4build1 | vulnerable |
| Ubuntu | clickhouse | 24.04 | 18.16.1+ds-7.4build2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | clickhouse | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.