CVE search · CVE-2021-42387
CVE-2021-42387
high 8.1
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.
Details
- Status
- Modified
- Published
- Last changed
- Source
- reefs@jfrog.com
- Weakness
- CWE-125
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | high 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
nvd@nist.govPrimary |
| CVSS 2.0 | medium 5.5 | AV:N/AC:L/Au:S/C:P/I:N/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