Unrated severityNVD Advisory· Published Mar 14, 2022· Updated Aug 4, 2024
CVE-2021-42388
CVE-2021-42388
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.
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Affected products
2- yandex/clickhousev5Range: unspecified
Patches
Vulnerability mechanics
References
2News mentions
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