{"action":"Upgrade clickhouse to 18.16.1+ds-7.3 or later.","affected":[{"fixed":"18.16.1+ds-7.3","introduced":"0"}],"component":"clickhouse","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["18.16.1+ds-7.3"],"id":"tcs_01M5NG1DCQPPF9B2Q96KXJC321","modified_at":"2026-10-23T18:03:27.828223883Z","published_at":"2022-03-14T23:15:08.203Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-43305","https://security-tracker.debian.org/tracker/CVE-2021-43305"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-43305","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-43305"}],"summary":"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 arbitrar"}