## Fixed in ClickHouse Release 19.14.3.3, 2019-09-10

### CVE-2019-15024

Аn attacker having write access to ZooKeeper and who is able to run a custom server available from the network where ClickHouse runs, can create a custom-built malicious server that will act as a ClickHouse replica and register it in ZooKeeper. When another replica will fetch data part from the malicious replica, it can force clickhouse-server to write to arbitrary path on filesystem.

Credits: Eldar Zaitov of Yandex Information Security Team

### CVE-2019-16535

Аn OOB read, OOB write and integer underflow in decompression algorithms can be used to achieve RCE or DoS via native protocol.

Credits: Eldar Zaitov of Yandex Information Security Team

### CVE-2019-16536

Stack overflow leading to DoS can be triggered by malicious authenticated client.

Credits: Eldar Zaitov of Yandex Information Security Team

## Fixed in ClickHouse Release 19.13.6.1, 2019-09-20

### CVE-2019-18657

Table function `url` had the vulnerability allowed the attacker to inject arbitrary HTTP headers in the request.

Credits: [Nikita Tikhomirov](https://github.com/NSTikhomirov)

## Fixed in ClickHouse Release 18.12.13, 2018-09-10

### CVE-2018-14672

Functions for loading CatBoost models allowed path traversal and reading arbitrary files through error messages.

Credits: Andrey Krasichkov of Yandex Information Security Team

## Fixed in ClickHouse Release 18.10.3, 2018-08-13

### CVE-2018-14671

unixODBC allowed loading arbitrary shared objects from the file system which led to a Remote Code Execution vulnerability.

Credits: Andrey Krasichkov and Evgeny Sidorov of Yandex Information Security Team

## Fixed in ClickHouse Release 1.1.54388, 2018-06-28

### CVE-2018-14668

"remote" table function allowed arbitrary symbols in "user", "password" and "default_database" fields which led to Cross Protocol Request Forgery Attacks.

Credits: Andrey Krasichkov of Yandex Information Security Team

## Fixed in ClickHouse Release 1.1.54390, 2018-07-06

### CVE-2018-14669

ClickHouse MySQL client had "LOAD DATA LOCAL INFILE" functionality enabled that allowed a malicious MySQL database read arbitrary files from the connected ClickHouse server.

Credits: Andrey Krasichkov and Evgeny Sidorov of Yandex Information Security Team

## Fixed in ClickHouse Release 1.1.54131, 2017-01-10

### CVE-2018-14670

Incorrect configuration in deb package could lead to unauthorized use of the database.

Credits: the UK's National Cyber Security Centre (NCSC)

[Original article](https://clickhouse.yandex/docs/en/security_changelog/) <!--hide-->