CVE-2021-43305

Description

Heap buffer overflow in Clickhouses 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), dont exceed the destination buffers limits. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call.

Risk Information

Base Score

8.8

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.281

Associated Vulnerability

Vulnerability	OS Platform
column-oriented database system (cli client) (USN-6933-1) clickhouse-common_18.16.1+ds-7ubuntu0.1_amd64.deb	Linux
column-oriented database system (cli client) (USN-6933-1) clickhouse-server_18.16.1+ds-7ubuntu0.1_amd64.deb	Linux
column-oriented database system (cli client) (USN-6933-1) clickhouse-tools_18.16.1+ds-7ubuntu0.1_amd64.deb	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234