VULNERABILITY

Debian: CVE-2021-42388: clickhouse -- security update

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Debian: CVE-2021-42388: clickhouse -- security update

Severity
6
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:P)
Published
03/14/2022
Created
11/08/2022
Added
11/07/2022
Modified
11/07/2022

Description

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.

Solution(s)

  • debian-upgrade-clickhouse

References

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