{"id":"UBUNTU-CVE-2021-28994","details":"kopano-ical (formerly zarafa-ical) in Kopano Groupware Core through 8.7.16, 9.x through 9.1.0, 10.x through 10.0.7, and 11.x through 11.0.1 and Zarafa 6.30.x through 7.2.x allows memory exhaustion via long HTTP headers.","modified":"2026-04-22T12:51:17.982307Z","published":"2021-03-31T23:15:00Z","upstream":["CVE-2021-28994"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-28994"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/03/19/6"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-28994"}],"affected":[{"package":{"name":"kopanocore","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/kopanocore@8.5.5-0ubuntu1+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.1.0-3ubuntu5","8.1.0-3ubuntu6","8.3.4-4ubuntu4","8.5.2-1ubuntu1","8.5.5-0ubuntu1","8.5.5-0ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-archiver"},{"binary_name":"kopano-backup","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-common"},{"binary_name":"kopano-contacts","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_name":"kopano-core","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_name":"kopano-dagent","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_name":"kopano-gateway","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-ical"},{"binary_name":"kopano-l10n","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_name":"kopano-libs","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-monitor"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-presence"},{"binary_name":"kopano-search","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-server"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-spooler"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"kopano-utils"},{"binary_name":"php-mapi","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_name":"php7.1-mapi","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_name":"python-kopano","binary_version":"8.5.5-0ubuntu1+esm1"},{"binary_version":"8.5.5-0ubuntu1+esm1","binary_name":"python-mapi"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-28994.json"}},{"package":{"name":"kopanocore","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/kopanocore@8.7.0-7ubuntu1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.7.0-3build2","8.7.0-5ubuntu5","8.7.0-5ubuntu6","8.7.0-6ubuntu1","8.7.0-6ubuntu2","8.7.0-6ubuntu3","8.7.0-7ubuntu1","8.7.0-7ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"kopano-archiver","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-backup","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-common","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-contacts","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-core","binary_version":"8.7.0-7ubuntu1.1"},{"binary_version":"8.7.0-7ubuntu1.1","binary_name":"kopano-dagent"},{"binary_name":"kopano-gateway","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-ical","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-l10n","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-libs","binary_version":"8.7.0-7ubuntu1.1"},{"binary_version":"8.7.0-7ubuntu1.1","binary_name":"kopano-monitor"},{"binary_name":"kopano-presence","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-search","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-server","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"kopano-spamd","binary_version":"8.7.0-7ubuntu1.1"},{"binary_version":"8.7.0-7ubuntu1.1","binary_name":"kopano-spooler"},{"binary_version":"8.7.0-7ubuntu1.1","binary_name":"kopano-utils"},{"binary_name":"php-mapi","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"python3-kopano","binary_version":"8.7.0-7ubuntu1.1"},{"binary_name":"python3-mapi","binary_version":"8.7.0-7ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-28994.json"}},{"package":{"name":"kopanocore","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/kopanocore@8.7.0-7.1ubuntu10.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.7.0-7.1ubuntu4","8.7.0-7.1ubuntu6","8.7.0-7.1ubuntu7","8.7.0-7.1ubuntu8","8.7.0-7.1ubuntu10","8.7.0-7.1ubuntu10.1"],"ecosystem_specific":{"binaries":[{"binary_name":"kopano-archiver","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-backup","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-common","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-contacts","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-core","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-dagent","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-gateway","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-ical","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-l10n","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-libs","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-monitor","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_version":"8.7.0-7.1ubuntu10.1","binary_name":"kopano-presence"},{"binary_name":"kopano-search","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-server","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-spamd","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"kopano-spooler","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_version":"8.7.0-7.1ubuntu10.1","binary_name":"kopano-utils"},{"binary_name":"php-mapi","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_name":"python3-kopano","binary_version":"8.7.0-7.1ubuntu10.1"},{"binary_version":"8.7.0-7.1ubuntu10.1","binary_name":"python3-mapi"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-28994.json"}}],"schema_version":"1.7.5","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"}]}