CVE-2021-43304

 

Published at: - 15-03-2022 12:15

Last modified: - 22-03-2022 04:02

Total changes: - 3

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.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms

 

Keywords

NVD

 

CVE-2021-43304

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures