CVE - CVE-2021-42387

CVE-ID
CVE-2021-42387	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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 upper bounds of the source of the copy operation.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms URL:https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms MLIST:[debian-lts-announce] 20221104 [SECURITY] [DLA 3176-1] clickhouse security update URL:https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html
Assigning CNA
JFROG
Date Record Created
20211014	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20211014)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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