{"id":"USN-4454-2","summary":"samba vulnerability","details":"USN-4454-1 fixed a vulnerability in Samba. This update provides\nthe corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Martin von Wittich and Wilko Meyer discovered that Samba incorrectly\n handled certain empty UDP packets when being used as a AD DC NBT server. A\n remote attacker could possibly use this issue to cause Samba to crash,\n resulting in a denial of service.\n","modified":"2026-04-22T10:07:11.060839Z","published":"2020-08-10T19:10:54Z","related":["UBUNTU-CVE-2020-14303"],"upstream":["CVE-2020-14303","UBUNTU-CVE-2020-14303"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4454-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-14303"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8"}]}],"versions":["2:3.6.18-1ubuntu3","2:4.0.10+dfsg-4ubuntu2","2:4.0.13+dfsg-1ubuntu1","2:4.1.3+dfsg-2ubuntu2","2:4.1.3+dfsg-2ubuntu3","2:4.1.3+dfsg-2ubuntu4","2:4.1.3+dfsg-2ubuntu5","2:4.1.6+dfsg-1ubuntu1","2:4.1.6+dfsg-1ubuntu2","2:4.1.6+dfsg-1ubuntu2.14.04.1","2:4.1.6+dfsg-1ubuntu2.14.04.2","2:4.1.6+dfsg-1ubuntu2.14.04.3","2:4.1.6+dfsg-1ubuntu2.14.04.4","2:4.1.6+dfsg-1ubuntu2.14.04.5","2:4.1.6+dfsg-1ubuntu2.14.04.7","2:4.1.6+dfsg-1ubuntu2.14.04.8","2:4.1.6+dfsg-1ubuntu2.14.04.9","2:4.1.6+dfsg-1ubuntu2.14.04.11","2:4.1.6+dfsg-1ubuntu2.14.04.12","2:4.1.6+dfsg-1ubuntu2.14.04.13","2:4.3.8+dfsg-0ubuntu0.14.04.2","2:4.3.9+dfsg-0ubuntu0.14.04.1","2:4.3.9+dfsg-0ubuntu0.14.04.3","2:4.3.11+dfsg-0ubuntu0.14.04.1","2:4.3.11+dfsg-0ubuntu0.14.04.2","2:4.3.11+dfsg-0ubuntu0.14.04.3","2:4.3.11+dfsg-0ubuntu0.14.04.4","2:4.3.11+dfsg-0ubuntu0.14.04.6","2:4.3.11+dfsg-0ubuntu0.14.04.7","2:4.3.11+dfsg-0ubuntu0.14.04.8","2:4.3.11+dfsg-0ubuntu0.14.04.9","2:4.3.11+dfsg-0ubuntu0.14.04.10","2:4.3.11+dfsg-0ubuntu0.14.04.11","2:4.3.11+dfsg-0ubuntu0.14.04.12","2:4.3.11+dfsg-0ubuntu0.14.04.13","2:4.3.11+dfsg-0ubuntu0.14.04.14","2:4.3.11+dfsg-0ubuntu0.14.04.16","2:4.3.11+dfsg-0ubuntu0.14.04.17","2:4.3.11+dfsg-0ubuntu0.14.04.19","2:4.3.11+dfsg-0ubuntu0.14.04.20","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm2","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"libnss-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"libpam-smbpass"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"libpam-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"libsmbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"libsmbsharemodes0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"libwbclient0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"python-samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"registry-tools"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"samba-common"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"samba-common-bin"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"samba-libs"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"samba-testsuite"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"smbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","binary_name":"winbind"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-14303","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"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4454-2.json"}}],"schema_version":"1.7.5"}