Heap out-of-bounds read in Clickhouse's LZ4 compression...
High severity
Unreviewed
Published
Mar 16, 2022
to the GitHub Advisory Database
•
Updated Feb 2, 2023
Description
Published by the National Vulnerability Database
Mar 14, 2022
Published to the GitHub Advisory Database
Mar 16, 2022
Last updated
Feb 2, 2023
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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