{"id":"UBUNTU-CVE-2021-3480","details":"A flaw was found in slapi-nis in versions before 0.56.7. A NULL pointer dereference during the parsing of the Binding DN could allow an unauthenticated attacker to crash the 389-ds-base directory server. The highest threat from this vulnerability is to system availability.","modified":"2026-01-20T17:15:03.646967Z","published":"2021-05-20T13:15:00Z","upstream":["CVE-2021-3480"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3480"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1944640"},{"type":"REPORT","url":"https://pagure.io/slapi-nis/c/c7417ea2d534712e559b56ed45baa91c5d3d44db?branch=master"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-3480"}],"affected":[{"package":{"name":"slapi-nis","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/slapi-nis@0.55-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.54.2-1","0.55-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.55-1","binary_name":"slapi-nis"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3480.json"}},{"package":{"name":"slapi-nis","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/slapi-nis@0.56.1-1build1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.56.1-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.56.1-1build1","binary_name":"slapi-nis"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3480.json"}},{"package":{"name":"slapi-nis","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/slapi-nis@0.56.2-1build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.56.2-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.56.2-1build1","binary_name":"slapi-nis"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3480.json"}},{"package":{"name":"slapi-nis","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/slapi-nis@0.56.7-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.56.5-2","0.56.7-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.56.7-1","binary_name":"slapi-nis"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3480.json"}},{"package":{"name":"slapi-nis","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/slapi-nis@0.60.0-1build3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.60.0-1","0.60.0-1build2","0.60.0-1build3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.60.0-1build3","binary_name":"slapi-nis"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3480.json"}},{"package":{"name":"slapi-nis","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/slapi-nis@0.60.0-1.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.60.0-1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.60.0-1.1","binary_name":"slapi-nis"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3480.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}