CVE-2026-59901: Loop with Unreachable Exit Condition

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the Bzip2Decoder handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the...

Fixed in ClickHouse v23.10.5.20, 2023-11-26​

A heap buffer overflow vulnerability affecting the native interface running by default on port 9000/tcp. An attacker, by triggering a bug in the T64 compression codec, can cause the ClickHouse server process to crash. This vulnerability can be exploited without the need to authenticate...

CVE-2023-47118

A heap buffer overflow vulnerability affecting the native interface running by default on port 9000/tcp. An attacker, by triggering a bug in the T64 compression codec, can cause the ClickHouse server process to crash. This vulnerability can be exploited without the need to authenticate. Fix has...

Debian dla-3176 : clickhouse-client - security update

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3176 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-3176-1 [email protected]...

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...

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...

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...

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...

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...

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...

CVE-2021-42391

CVE-2021-42391 affects ClickHouse through a divide-by-zero flaw in the Gorilla compression codec. The vulnerability arises when parsing a malicious query: the first byte of the compressed buffer is used in a modulo operation without validating for zero, potentially causing denial of service. The ...

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...

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...

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 wildCopyop, ip, copyend, don’t exceed the destination buffer’s limits. This issu...

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...

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 wildCopyop, ip, copyend, don’t exceed the destination buffer’s limits...

CVE-2021-42391: Divide By Zero

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...

CVE-2021-42389: Divide By Zero

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...

CVE-2021-43305: Heap-based Buffer Overflow

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 op, ip, copyend, don’t exceed the destination buffer’s limits. This iss...

CVE-2021-43304: Heap-based Buffer Overflow

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 op, ip, copyend, don’t exceed the destination buffer’s limits...