{"id":"USN-6933-1","summary":"clickhouse vulnerabilities","details":"It was discovered that ClickHouse incorrectly handled memory, leading to a\nheap out-of-bounds data read. An attacker could possibly use this issue to\ncause a denial of service, or leak sensitive information.\n(CVE-2021-42387, CVE-2021-41388)\n\nIt was discovered that ClickHouse incorrectly handled memory, leading to a\nheap-based buffer overflow. An attacker could possibly use this issue to\ncause a denial of service, or execute arbitrary code. (CVE-2021-43305)\n","modified":"2026-02-10T04:44:43Z","published":"2024-07-31T08:17:56Z","related":["UBUNTU-CVE-2021-42387","UBUNTU-CVE-2021-42388","UBUNTU-CVE-2021-43305"],"upstream":["CVE-2021-42387","CVE-2021-42388","CVE-2021-43305","UBUNTU-CVE-2021-42387","UBUNTU-CVE-2021-42388","UBUNTU-CVE-2021-43305"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6933-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-42387"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-42388"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-43305"}],"affected":[{"package":{"name":"clickhouse","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/clickhouse@18.16.1+ds-7ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.16.1+ds-7ubuntu0.1"}]}],"versions":["18.16.1+ds-5","18.16.1+ds-5ubuntu1","18.16.1+ds-5ubuntu2","18.16.1+ds-6ubuntu1","18.16.1+ds-7"],"ecosystem_specific":{"binaries":[{"binary_name":"clickhouse-client","binary_version":"18.16.1+ds-7ubuntu0.1"},{"binary_name":"clickhouse-common","binary_version":"18.16.1+ds-7ubuntu0.1"},{"binary_name":"clickhouse-server","binary_version":"18.16.1+ds-7ubuntu0.1"},{"binary_name":"clickhouse-tools","binary_version":"18.16.1+ds-7ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-42387"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-42388"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-43305"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6933-1.json"}}],"schema_version":"1.7.3"}