This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-43304 →

DEBIAN-CVE-2021-43304

Heap buffer overflow in Clickhouse's LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ...

Original description

The description as published by the source.

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(op, ip, copy_end), don’t exceed the destination buffer’s limits.

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