vulnerability
Debian: CVE-2021-43304: clickhouse -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:P/I:P/A:P) | Mar 14, 2022 | Nov 7, 2022 | Aug 15, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
Mar 14, 2022
Added
Nov 7, 2022
Modified
Aug 15, 2025
Description
Heap buffer overflow in Clickhouse's 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), don’t exceed the destination buffer’s limits.
Solution
debian-upgrade-clickhouse
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