CVE-2019-16536: 
ClickHouse vulnerability analysis and mitigation

Stack overflow leading to DoS (Denial of Service) vulnerability identified as CVE-2019-16536 was discovered in Clickhouse versions before 19.14.3.3. The vulnerability could be exploited by a malicious authenticated client (Wiz Database, ClickHouse Changelog).

The vulnerability is classified as a stack overflow issue that could lead to a Denial of Service condition. According to the CVSS v4.0 scoring, it received a HIGH severity rating of 8.2 with the following vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H. The vulnerability requires high privileges (authenticated access) to exploit (NVD, Wiz Database).

When successfully exploited, the vulnerability can result in a Denial of Service condition affecting the availability of the Clickhouse server. The attack requires authentication, which somewhat limits its potential impact (Wiz Database).

The vulnerability requires high privileges (authenticated access) to exploit. No public exploits have been documented at this time (Wiz Database).

The vulnerability was fixed in Clickhouse version 19.14.3.3. Users are advised to upgrade to this version or later to mitigate the risk. No alternative workarounds have been publicly documented (ClickHouse Changelog).