SecuritySpace - CVE-2021-43305

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CVE ID: CVE-2021-43305

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(op, ip, copy_end), don’t exceed the destination buffer’s limits. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call.

Test IDs: None available

Cross References: Common Vulnerability Exposure (CVE) ID: CVE-2021-43305
https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms
https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms
https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html

CVE ID:	CVE-2021-43305
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(op, ip, copy_end), don’t exceed the destination buffer’s limits. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-43305 https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbms https://lists.debian.org/debian-lts-announce/2022/11/msg00002.html