{"action":"Upgrade openldap to 2.4.57+dfsg-2 or later.","affected":[{"fixed":"2.4.57+dfsg-2","introduced":"0"}],"component":"openldap","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["2.4.57+dfsg-2"],"id":"tcs_01M5NFGMGJS01F6SJ6QM5CSQ7S","modified_at":"2026-10-15T09:47:41.204092809Z","published_at":"2021-02-14T03:15:12.957Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-27212","https://security-tracker.debian.org/tracker/CVE-2021-27212"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-27212#Debian:13/openldap","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-27212"}],"summary":"In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon"}