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Security Changelog

Fixed in ClickHouse 22.9.1.2603, 2022-09-22​

CVE-2022-44011​

A heap buffer overflow issue was discovered in ClickHouse server. A malicious user with ability to load data into ClickHouse server could crash the ClickHouse server by inserting a malformed CapnProto object.

Fix has been pushed to version 22.9.1.2603, 22.8.2.11, 22.7.4.16, 22.6.6.16, 22.3.12.19

Credits: Kiojj (independent researcher)

CVE-2022-44010​

A heap buffer overflow issue was discovered in ClickHouse server. An attacker could send a specially crafted HTTP request to the HTTP Endpoint (listening on port 8123 by default), causing a heap-based buffer overflow that crashes the ClickHouse server process. This attack does not require authentication.

Fix has been pushed to version 22.9.1.2603, 22.8.2.11, 22.7.4.16, 22.6.6.16, 22.3.12.19

Credits: Kiojj (independent researcher)

Fixed in ClickHouse 21.10.2.15, 2021-10-18​

CVE-2021-43304​

Heap buffer overflow in ClickHouse's LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ4::decompressImpl loop and especially the arbitrary copy operation wildCopy<copy_amount>(op, ip, copy_end), don’t exceed the destination buffer’s limits.

Credits: JFrog Security Research Team

CVE-2021-43305​

Heap buffer overflow in ClickHouse's LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ4::decompressImpl loop and especially the arbitrary copy operation wildCopy<copy_amount>(op, ip, copy_end), don’t exceed the destination buffer’s limits. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call.

Credits: JFrog Security Research Team

CVE-2021-42387​

Heap out-of-bounds read in ClickHouse's LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value ('offset') is read from the compressed data. The offset is later used in the length of a copy operation, without checking the upper bounds of the source of the copy operation.

Credits: JFrog Security Research Team

CVE-2021-42388​

Heap out-of-bounds read in ClickHouse's LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value ('offset') is read from the compressed data. The offset is later used in the length of a copy operation, without checking the lower bounds of the source of the copy operation.

Credits: JFrog Security Research Team

CVE-2021-42389​

Divide-by-zero in ClickHouse's Delta compression codec when parsing a malicious query. The first byte of the compressed buffer is used in a modulo operation without being checked for 0.

Credits: JFrog Security Research Team

CVE-2021-42390​

Divide-by-zero in ClickHouse's DeltaDouble compression codec when parsing a malicious query. The first byte of the compressed buffer is used in a modulo operation without being checked for 0.

Credits: JFrog Security Research Team

CVE-2021-42391​

Divide-by-zero in ClickHouse's Gorilla compression codec when parsing a malicious query. The first byte of the compressed buffer is used in a modulo operation without being checked for 0.

Credits: JFrog Security Research Team

Fixed in ClickHouse 21.4.3.21, 2021-04-12​

CVE-2021-25263​

An attacker that has CREATE DICTIONARY privilege, can read arbitary file outside permitted directory.

Fix has been pushed to versions 20.8.18.32-lts, 21.1.9.41-stable, 21.2.9.41-stable, 21.3.6.55-lts, 21.4.3.21-stable and later.

Credits: Vyacheslav Egoshin

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

CVE-2019-15024​

Аn attacker that has write access to ZooKeeper and who can 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 a 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

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 the unauthorized use of the database.

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