vulnerability

Ubuntu: USN-6933-1 (CVE-2021-42388): ClickHouse vulnerabilities

Severity
6
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:P)
Published
2022-03-14
Added
2024-08-12
Modified
2024-10-23

Description

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.

Solution(s)

ubuntu-upgrade-clickhouse-commonubuntu-upgrade-clickhouse-serverubuntu-upgrade-clickhouse-tools
Title
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