This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-42387 →

DEBIAN-CVE-2021-42387

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 unsi...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 clickhouse

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.16.1+ds-7.3"}]}]

References

advisory security-tracker.debian.org