{"id":"USN-4256-1","summary":"cyrus-sasl2 vulnerability","details":"It was discovered that Cyrus SASL incorrectly handled certain LDAP packets.\nAn attacker could possibly use this issue to execute arbitrary code or cause\na denial of service.\n","modified":"2026-04-22T10:02:47.351396Z","published":"2020-01-28T13:00:48Z","related":["UBUNTU-CVE-2019-19906"],"upstream":["CVE-2019-19906","UBUNTU-CVE-2019-19906"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4256-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19906"}],"affected":[{"package":{"name":"cyrus-sasl2","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/cyrus-sasl2@2.1.25.dfsg1-17ubuntu0.1~esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.25.dfsg1-17ubuntu0.1~esm1"}]}],"versions":["2.1.25.dfsg1-17","2.1.25.dfsg1-17build1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-2"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-modules"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-modules-db"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-modules-gssapi-heimdal"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-modules-gssapi-mit"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-modules-ldap"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-modules-otp"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"libsasl2-modules-sql"},{"binary_version":"2.1.25.dfsg1-17ubuntu0.1~esm1","binary_name":"sasl2-bin"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"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"}],"id":"CVE-2019-19906"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4256-1.json"}},{"package":{"name":"cyrus-sasl2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/cyrus-sasl2@2.1.26.dfsg1-14ubuntu0.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.26.dfsg1-14ubuntu0.2"}]}],"versions":["2.1.26.dfsg1-14","2.1.26.dfsg1-14build1","2.1.26.dfsg1-14ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-2"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-modules"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-modules-db"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-modules-gssapi-heimdal"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-modules-gssapi-mit"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-modules-ldap"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-modules-otp"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"libsasl2-modules-sql"},{"binary_version":"2.1.26.dfsg1-14ubuntu0.2","binary_name":"sasl2-bin"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"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"}],"id":"CVE-2019-19906"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4256-1.json"}},{"package":{"name":"cyrus-sasl2","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/cyrus-sasl2@2.1.27~101-g0780600+dfsg-3ubuntu2.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.27~101-g0780600+dfsg-3ubuntu2.1"}]}],"versions":["2.1.27~101-g0780600+dfsg-3ubuntu1","2.1.27~101-g0780600+dfsg-3ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-2"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-modules"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-modules-db"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-modules-gssapi-heimdal"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-modules-gssapi-mit"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-modules-ldap"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-modules-otp"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"libsasl2-modules-sql"},{"binary_version":"2.1.27~101-g0780600+dfsg-3ubuntu2.1","binary_name":"sasl2-bin"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"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"}],"id":"CVE-2019-19906"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4256-1.json"}}],"schema_version":"1.7.5"}