{"api_version":"1","generated_at":"2026-04-22T19:35:01+00:00","cve":"CVE-2015-1340","urls":{"html":"https://cve.report/CVE-2015-1340","api":"https://cve.report/api/cve/CVE-2015-1340.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2015-1340","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-1340"},"summary":{"title":"CVE-2015-1340","description":"LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.","state":"PUBLIC","assigner":"security@ubuntu.com","published_at":"2019-04-22 16:29:00","updated_at":"2019-10-09 23:13:00"},"problem_types":["CWE-362"],"metrics":[],"references":[{"url":"https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4","name":"https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4","refsource":"MISC","tags":["Patch","Third Party Advisory"],"title":"CVE-2015-1340: Fix race condition between fchown and chmod in idmapset · lxc/lxd@19c6961 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-1340","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-1340","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2015","cve_id":"1340","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"linuxcontainers","cpe5":"lxd","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"1340","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"linuxcontainers","cpe5":"lxd","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security@ubuntu.com","DATE_PUBLIC":"2015-10-02T00:00:00.000Z","ID":"CVE-2015-1340","STATE":"PUBLIC","TITLE":"chmod race in doUidshiftIntoContainer"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"LXD","version":{"version_data":[{"affected":"<","version_value":"0.19-0ubuntu5"}]}}]},"vendor_name":"Ubuntu"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice."}]},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"PHYSICAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.0"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Race condition."}]}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4","name":"https://github.com/lxc/lxd/commit/19c6961cc1012c8a529f20807328a9357f5034f4"}]},"source":{"defect":["https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1502270"],"discovery":"INTERNAL"}},"nvd":{"publishedDate":"2019-04-22 16:29:00","lastModifiedDate":"2019-10-09 23:13:00","problem_types":["CWE-362"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH"},"exploitabilityScore":2.2,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:linuxcontainers:lxd:-:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2015","CveId":"1340","Ordinal":"78181","Title":"CVE-2015-1340","CVE":"CVE-2015-1340","Year":"2015"},"notes":[{"CveYear":"2015","CveId":"1340","Ordinal":"1","NoteData":"LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.","Type":"Description","Title":null},{"CveYear":"2015","CveId":"1340","Ordinal":"2","NoteData":"2019-04-22","Type":"Other","Title":"Published"},{"CveYear":"2015","CveId":"1340","Ordinal":"3","NoteData":"2019-04-22","Type":"Other","Title":"Modified"}]}}}