Division by zero Affecting clickhouse/clickhouse package, versions [,21.9.2.17-stable )
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Test your applications- Snyk ID SNYK-UNMANAGED-CLICKHOUSECLICKHOUSE-7578237
- published 4 Aug 2024
- disclosed 4 Aug 2024
- credit JFrog Security Research Team
Introduced: 4 Aug 2024
CVE-2021-42390 Open this link in a new tabHow to fix?
Upgrade clickhouse/clickhouse to version 21.9.2.17-stable or higher.
Overview
Affected versions of this package are vulnerable to Division by zero when performing modulo division on the first byte in a compressed buffer in the Delta Double decompression codec. A user can trigger a crash by sending a malicious query.
Details
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm
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