{"id":"USN-6425-1","summary":"samba vulnerabilities","details":"Sri Nagasubramanian discovered that the Samba acl_xattr VFS module\nincorrectly handled read-only files. When Samba is configured to ignore\nsystem ACLs, a remote attacker could possibly use this issue to truncate\nread-only files. (CVE-2023-4091)\n\nAndrew Bartlett discovered that Samba incorrectly handled the DirSync\ncontrol. A remote attacker with an RODC DC account could possibly use this\nissue to obtain all domain secrets. (CVE-2023-4154)\n\nAndrew Bartlett discovered that Samba incorrectly handled the rpcecho\ndevelopment server. A remote attacker could possibly use this issue to\ncause Samba to stop responding, resulting in a denial of service.\n(CVE-2023-42669)\n\nKirin van der Veer discovered that Samba incorrectly handled certain RPC\nservice listeners. A remote attacker could possibly use this issue to cause\nSamba to start multiple incompatible RPC listeners, resulting in a denial\nof service. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04.\n(CVE-2023-42670)\n","modified":"2026-04-27T16:47:10.942638468Z","published":"2023-10-10T15:01:00Z","related":["UBUNTU-CVE-2023-4091","UBUNTU-CVE-2023-4154","UBUNTU-CVE-2023-42669","UBUNTU-CVE-2023-42670"],"upstream":["CVE-2023-4091","CVE-2023-4154","CVE-2023-42669","CVE-2023-42670","UBUNTU-CVE-2023-4091","UBUNTU-CVE-2023-4154","UBUNTU-CVE-2023-42669","UBUNTU-CVE-2023-42670"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6425-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4091"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4154"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-42669"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-42670"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.15.13+dfsg-0ubuntu0.20.04.6?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu0.20.04.6"}]}],"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","2:4.11.6+dfsg-0ubuntu1.3","2:4.11.6+dfsg-0ubuntu1.4","2:4.11.6+dfsg-0ubuntu1.5","2:4.11.6+dfsg-0ubuntu1.6","2:4.11.6+dfsg-0ubuntu1.8","2:4.11.6+dfsg-0ubuntu1.9","2:4.11.6+dfsg-0ubuntu1.10","2:4.13.14+dfsg-0ubuntu0.20.04.1","2:4.13.14+dfsg-0ubuntu0.20.04.2","2:4.13.14+dfsg-0ubuntu0.20.04.3","2:4.13.14+dfsg-0ubuntu0.20.04.4","2:4.13.17~dfsg-0ubuntu0.21.04.1","2:4.13.17~dfsg-0ubuntu0.21.04.2","2:4.13.17~dfsg-0ubuntu1.20.04.1","2:4.13.17~dfsg-0ubuntu1.20.04.2","2:4.13.17~dfsg-0ubuntu1.20.04.4","2:4.13.17~dfsg-0ubuntu1.20.04.5","2:4.15.13+dfsg-0ubuntu0.20.04.1","2:4.15.13+dfsg-0ubuntu0.20.04.2","2:4.15.13+dfsg-0ubuntu0.20.04.3","2:4.15.13+dfsg-0ubuntu0.20.04.4","2:4.15.13+dfsg-0ubuntu0.20.04.5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"ctdb"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"libnss-winbind"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"libpam-winbind"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"libsmbclient"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"libwbclient0"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"python3-samba"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"registry-tools"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"samba"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"samba-common"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"samba-common-bin"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"samba-libs"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"samba-testsuite"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"smbclient"},{"binary_version":"2:4.15.13+dfsg-0ubuntu0.20.04.6","binary_name":"winbind"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6425-1.json","cves_map":{"cves":[{"id":"CVE-2023-4091","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2023-4154","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-42669","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"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"}}},{"package":{"name":"samba","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.15.13+dfsg-0ubuntu1.5?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.15.13+dfsg-0ubuntu1.5"}]}],"versions":["2:4.13.5+dfsg-2ubuntu2","2:4.13.5+dfsg-2ubuntu3","2:4.13.14+dfsg-0ubuntu1","2:4.13.14+dfsg-0ubuntu2","2:4.15.5~dfsg-0ubuntu1","2:4.15.5~dfsg-0ubuntu2","2:4.15.5~dfsg-0ubuntu4","2:4.15.5~dfsg-0ubuntu5","2:4.15.5~dfsg-0ubuntu5.1","2:4.15.9+dfsg-0ubuntu0.2","2:4.15.9+dfsg-0ubuntu0.3","2:4.15.13+dfsg-0ubuntu1","2:4.15.13+dfsg-0ubuntu1.1","2:4.15.13+dfsg-0ubuntu1.2","2:4.15.13+dfsg-0ubuntu1.3","2:4.15.13+dfsg-0ubuntu1.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"ctdb"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"libnss-winbind"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"libpam-winbind"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"libsmbclient"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"libwbclient0"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"python3-samba"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"registry-tools"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"samba"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"samba-common"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"samba-common-bin"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"samba-libs"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"samba-testsuite"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"smbclient"},{"binary_version":"2:4.15.13+dfsg-0ubuntu1.5","binary_name":"winbind"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6425-1.json","cves_map":{"cves":[{"id":"CVE-2023-4091","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2023-4154","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2023-42669","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2023-42670","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:22.04:LTS"}}}],"schema_version":"1.7.5"}