CVE search · CVE-2021-43305
CVE-2021-43305
high 8.8
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. This issue is very similar to CVE-2021-43304, but the vulnerable copy operation is in a different wildCopy call.
Details
- Status
- Modified
- Published
- Last changed
- Source
- reefs@jfrog.com
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | high 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
nvd@nist.govPrimary |
| CVSS 2.0 | medium 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- clickhouse · clickhouse
- debian · debian_linux
References
- https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbmsExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00002.htmlMailing ListThird Party Advisory
- https://jfrog.com/blog/7-rce-and-dos-vulnerabilities-found-in-clickhouse-dbmsExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00002.htmlMailing ListThird Party Advisory