Heap buffer overflow in Clickhouseβs LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ4::decompressImpl loop and especially the arbitrary copy operation wildCopy<copy_amount>(op, ip, copy_end), donβt exceed the destination bufferβs limits. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call.
CPE | Name | Operator | Version |
---|---|---|---|
debian_linux | eq | 10.0 | |
clickhouse | lt | 21.10.2.15 |