DEBIAN-CVE-2021-42388
- Source
- https://security-tracker.debian.org/tracker/CVE-2021-42388
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-42388.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-42388
- Upstream
- Published
- 2022-03-14T23:15:07.970Z
- Modified
- 2025-11-17T04:23:09.665674Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 lower bounds of the source of the copy operation.
- References
Affected packages
Debian:11 / clickhouse
Package
- Name
- clickhouse
- Purl
- pkg:deb/debian/clickhouse?arch=source
Debian:12 / clickhouse
Package
- Name
- clickhouse
- Purl
- pkg:deb/debian/clickhouse?arch=source