{"id":"USN-6425-3","aliases":[],"status":"published","title":"samba vulnerabilities","description":"USN-6425-1 fixed vulnerabilities in Samba. This update provides the\ncorresponding updates for Ubuntu 23.10.\n\nOriginal advisory details:\n\n Sri Nagasubramanian discovered that the Samba acl_xattr VFS module\n incorrectly handled read-only files. When Samba is configured to ignore\n system ACLs, a remote attacker could possibly use this issue to truncate\n read-only files. (CVE-2023-4091)\n \n Andrew Bartlett discovered that Samba incorrectly handled the DirSync\n control. A remote attacker with an RODC DC account could possibly use this\n issue to obtain all domain secrets. (CVE-2023-4154)\n \n Andrew Bartlett discovered that Samba incorrectly handled the rpcecho\n development server. A remote attacker could possibly use this issue to\n cause Samba to stop responding, resulting in a denial of service.\n (CVE-2023-42669)\n \n Kirin van der Veer discovered that Samba incorrectly handled certain RPC\n service listeners. A remote attacker could possibly use this issue to cause\n Samba to start multiple incompatible RPC listeners, resulting in a denial\n of service. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04.\n (CVE-2023-42670)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2023-10-17T11:34:39.06054Z","modified":"2026-02-04T03:19:39Z","fixes":[{"ecosystem":"Ubuntu:23.10","package":"samba","fixed_in":["2:4.18.6+dfsg-1ubuntu2.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:23.10","package":"samba","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.18.6+dfsg-1ubuntu2.1"}]}],"versions":["2:4.17.7+dfsg-1ubuntu1","2:4.18.3+dfsg-3ubuntu1","2:4.18.5+dfsg-1ubuntu1","2:4.18.5+dfsg-1ubuntu2","2:4.18.6+dfsg-1ubuntu1","2:4.18.6+dfsg-1ubuntu2"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-6425-3","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-4091","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-4154","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-42669","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-42670","tags":["report"]}],"sources":{"osv":[{"id":"USN-6425-3","title":"samba vulnerabilities","description":"USN-6425-1 fixed vulnerabilities in Samba. This update provides the\ncorresponding updates for Ubuntu 23.10.\n\nOriginal advisory details:\n\n Sri Nagasubramanian discovered that the Samba acl_xattr VFS module\n incorrectly handled read-only files. When Samba is configured to ignore\n system ACLs, a remote attacker could possibly use this issue to truncate\n read-only files. (CVE-2023-4091)\n \n Andrew Bartlett discovered that Samba incorrectly handled the DirSync\n control. A remote attacker with an RODC DC account could possibly use this\n issue to obtain all domain secrets. (CVE-2023-4154)\n \n Andrew Bartlett discovered that Samba incorrectly handled the rpcecho\n development server. A remote attacker could possibly use this issue to\n cause Samba to stop responding, resulting in a denial of service.\n (CVE-2023-42669)\n \n Kirin van der Veer discovered that Samba incorrectly handled certain RPC\n service listeners. A remote attacker could possibly use this issue to cause\n Samba to start multiple incompatible RPC listeners, resulting in a denial\n of service. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04.\n (CVE-2023-42670)\n","status":"published","published":"2023-10-17T11:34:39.06054Z","modified":"2026-02-04T03:19:39.331257Z","updated_at":"2026-11-02T16:58:17.305935Z"}]}}