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-2021-42390

ClickHouse DeltaDouble compression codec vulnerability (CVE-2021-42390) arises from a divide-by-zero when the first byte of a compressed buffer is used in a modulo operation without zero-checking. It is exploited during parsing a malicious query, potentially causing a denial-of-service. The issue...

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

CVE-2021-42389 affects ClickHouse’s Delta compression codec. The vulnerability is a divide-by-zero: during parsing a malicious query, the first byte of the compressed buffer is used in a modulo operation without checking for 0. The issue is tied to the Delta codec, as described in multiple source...

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-2021-42389

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-2021-42389

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-2021-42391: 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...

Yandex ClickHouse 缓冲区错误漏洞

Yandex ClickHouse is a set of open source columnar databases for online analytical processing from the Russian company Yandex. Yandex ClickHouse suffers from a buffer error vulnerability that stems from a heap out-of-bounds read in Clickhouse's LZ4 compression codec when parsing a malicious query...

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-2021-43304

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-2021-42390: Divide By Zero

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

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-2021-43304

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-2021-42387: Out-of-bounds Read

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-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...

CVE-2021-43304

CVE-2021-43304 describes a heap-buffer overflow in ClickHouse’s LZ4 compression codec when parsing a malicious query. The root cause is the LZ4::decompressImpl loop, where the arbitrary copy operation wildCopy(op, ip, copy_end) can exceed the destination buffer’s bounds. This vulnerability is lin...

CVE-2021-42388: Out-of-bounds Read

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-2021-43305: 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...