CVE-2021-42387: vulnerability in yandex clickhouse
Published · Updated
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3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.6%
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.
Affected products
yandex · clickhouseRelated CVEs — yandex clickhouse
In the same product, most dangerous first.