Description
It is possible to crash or redirect the execution flow of the ClickHouse server process from an unauthenticated vector by sending a specially crafted request to the ClickHouse server native interface. This redirection is limited to what is available within a 256-byte range of memory at the time of execution, and no known remote code execution (RCE) code has been produced or exploited.
Fixes have been merged to all currently supported version of ClickHouse. If you are maintaining your own forked version of ClickHouse or using an older version and cannot upgrade, the fix for this vulnerability can be found in this commit https://github.com/ClickHouse/ClickHouse/pull/64024 .
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ClickHouse | ClickHouse | v23.8.0 – < v23.8.15.35-lts, v24.3.0 – < v24.3.4.147-lts, v24.4.0 – < v24.4.2.141-stable, v24.5.0 – < v24.5.1.1763, v24.6.0 – < v24.6.1.4423-stable | v23.8.15.35-lts |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | clickhouse | No fix yet | — |
| Ubuntu 20.04 LTS | clickhouse | No fix yet | — |