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.
CPE | Name | Operator | Version |
---|---|---|---|
debian_linux | eq | 10.0 | |
clickhouse | lt | 21.10.2.15 |