{"id":"USN-4409-1","summary":"samba vulnerabilities","details":"Andrew Bartlett discovered that Samba incorrectly handled certain LDAP queries.\nA remote attacker could use this issue to cause Samba to crash, resulting\nin a denial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 18.04 LTS, Ubuntu 19.10 and Ubuntu 20.04 LTS. (CVE-2020-10730)\n\nDouglas Bagnall discovered that Samba incorrectly handled certain queries.\nA remote attacker could possibly use this issue to cause a denial of service.\n(CVE-2020-10745)\n\nAndrei Popa discovered that Samba incorrectly handled certain LDAP queries.\nA remote attacker could use this issue to cause Samba to crash, resulting\nin a denial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 18.04 LTS, Ubuntu 19.10 and Ubuntu 20.04 LTS.\n(CVE-2020-10760)\n","modified":"2026-02-10T04:41:51Z","published":"2020-07-02T12:42:33Z","related":["UBUNTU-CVE-2020-10730","UBUNTU-CVE-2020-10745","UBUNTU-CVE-2020-10760"],"upstream":["CVE-2020-10730","CVE-2020-10745","CVE-2020-10760","UBUNTU-CVE-2020-10730","UBUNTU-CVE-2020-10745","UBUNTU-CVE-2020-10760"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4409-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10730"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10745"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10760"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libnss-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libpam-smbpass"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libpam-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libsmbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libsmbclient-dev"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libsmbsharemodes-dev"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libsmbsharemodes0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libwbclient-dev"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"libwbclient0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"python-samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"registry-tools"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba-common"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba-common-bin"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba-dev"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba-libs"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba-testsuite"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"smbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","binary_name":"winbind"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-10745","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4409-1.json"}},{"package":{"name":"samba","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.16.04.28?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.3.11+dfsg-0ubuntu0.16.04.28"}]}],"versions":["2:4.1.17+dfsg-4ubuntu2","2:4.1.20+dfsg-1ubuntu1","2:4.1.20+dfsg-1ubuntu2","2:4.1.20+dfsg-1ubuntu3","2:4.1.20+dfsg-1ubuntu5","2:4.3.3+dfsg-1ubuntu1","2:4.3.3+dfsg-1ubuntu2","2:4.3.3+dfsg-1ubuntu3","2:4.3.6+dfsg-1ubuntu1","2:4.3.8+dfsg-0ubuntu1","2:4.3.9+dfsg-0ubuntu0.16.04.1","2:4.3.9+dfsg-0ubuntu0.16.04.2","2:4.3.9+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.1","2:4.3.11+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.5","2:4.3.11+dfsg-0ubuntu0.16.04.6","2:4.3.11+dfsg-0ubuntu0.16.04.7","2:4.3.11+dfsg-0ubuntu0.16.04.8","2:4.3.11+dfsg-0ubuntu0.16.04.9","2:4.3.11+dfsg-0ubuntu0.16.04.10","2:4.3.11+dfsg-0ubuntu0.16.04.11","2:4.3.11+dfsg-0ubuntu0.16.04.12","2:4.3.11+dfsg-0ubuntu0.16.04.13","2:4.3.11+dfsg-0ubuntu0.16.04.15","2:4.3.11+dfsg-0ubuntu0.16.04.16","2:4.3.11+dfsg-0ubuntu0.16.04.17","2:4.3.11+dfsg-0ubuntu0.16.04.18","2:4.3.11+dfsg-0ubuntu0.16.04.19","2:4.3.11+dfsg-0ubuntu0.16.04.20","2:4.3.11+dfsg-0ubuntu0.16.04.21","2:4.3.11+dfsg-0ubuntu0.16.04.23","2:4.3.11+dfsg-0ubuntu0.16.04.24","2:4.3.11+dfsg-0ubuntu0.16.04.25","2:4.3.11+dfsg-0ubuntu0.16.04.26","2:4.3.11+dfsg-0ubuntu0.16.04.27"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"ctdb"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"libnss-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"libpam-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"libsmbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"libsmbclient-dev"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"libwbclient-dev"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"libwbclient0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"python-samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"registry-tools"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba-common"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba-common-bin"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba-dev"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba-libs"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba-testsuite"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"smbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.28","binary_name":"winbind"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-10745","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4409-1.json"}},{"package":{"name":"samba","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.7.6+dfsg~ubuntu-0ubuntu2.17?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17"}]}],"versions":["2:4.6.7+dfsg-1ubuntu3","2:4.7.1+dfsg-1ubuntu1","2:4.7.3+dfsg-1ubuntu1","2:4.7.4+dfsg-1ubuntu1","2:4.7.6+dfsg~ubuntu-0ubuntu1","2:4.7.6+dfsg~ubuntu-0ubuntu2","2:4.7.6+dfsg~ubuntu-0ubuntu2.2","2:4.7.6+dfsg~ubuntu-0ubuntu2.4","2:4.7.6+dfsg~ubuntu-0ubuntu2.5","2:4.7.6+dfsg~ubuntu-0ubuntu2.6","2:4.7.6+dfsg~ubuntu-0ubuntu2.7","2:4.7.6+dfsg~ubuntu-0ubuntu2.9","2:4.7.6+dfsg~ubuntu-0ubuntu2.10","2:4.7.6+dfsg~ubuntu-0ubuntu2.11","2:4.7.6+dfsg~ubuntu-0ubuntu2.13","2:4.7.6+dfsg~ubuntu-0ubuntu2.14","2:4.7.6+dfsg~ubuntu-0ubuntu2.15","2:4.7.6+dfsg~ubuntu-0ubuntu2.16"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"ctdb"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"libnss-winbind"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"libpam-winbind"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"libsmbclient"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"libsmbclient-dev"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"libwbclient-dev"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"libwbclient0"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"python-samba"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"registry-tools"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba-common"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba-common-bin"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba-dev"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba-libs"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba-testsuite"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"smbclient"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.17","binary_name":"winbind"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-10730","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-10745","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-10760","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4409-1.json"}},{"package":{"name":"samba","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.11.6+dfsg-0ubuntu1.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.11.6+dfsg-0ubuntu1.3"}]}],"versions":["2:4.10.7+dfsg-0ubuntu2","2:4.10.7+dfsg-0ubuntu3","2:4.11.1+dfsg-3ubuntu1","2:4.11.1+dfsg-3ubuntu2","2:4.11.1+dfsg-3ubuntu4","2:4.11.5+dfsg-1ubuntu1","2:4.11.5+dfsg-1ubuntu2","2:4.11.6+dfsg-0ubuntu1","2:4.11.6+dfsg-0ubuntu1.1","2:4.11.6+dfsg-0ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"ctdb"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"libnss-winbind"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"libpam-winbind"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"libsmbclient"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"libsmbclient-dev"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"libwbclient-dev"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"libwbclient0"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"python3-samba"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"registry-tools"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba-common"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba-common-bin"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba-dev"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba-libs"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba-testsuite"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"smbclient"},{"binary_version":"2:4.11.6+dfsg-0ubuntu1.3","binary_name":"winbind"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-10730","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-10745","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-10760","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4409-1.json"}}],"schema_version":"1.7.3"}