{"containers":{"cna":{"affected":[{"product":"Apport","vendor":"Canonical","versions":[{"lessThan":"2.20.1-0ubuntu2.23","status":"affected","version":"2.20.1","versionType":"custom"},{"lessThan":"2.20.9-0ubuntu7.14","status":"affected","version":"2.20.9","versionType":"custom"},{"changes":[{"at":"2.20.11-0ubuntu22","status":"unaffected"}],"lessThan":"2.20.11-0ubuntu8.8","status":"affected","version":"2.20.11","versionType":"custom"}]}],"credits":[{"lang":"en","value":"Maximilien Bourgeteau"}],"datePublic":"2020-04-02T00:00:00.000Z","descriptions":[{"lang":"en","value":"Apport creates a world writable lock file with root ownership in the world writable /var/lock/apport directory. If the apport/ directory does not exist (this is not uncommon as /var/lock is a tmpfs), it will create the directory, otherwise it will simply continue execution using the existing directory. This allows for a symlink attack if an attacker were to create a symlink at /var/lock/apport, changing apport's lock file location. This file could then be used to escalate privileges, for example. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-379","description":"CWE-379 Creation of Temporary File in Directory with Incorrect Permissions","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2020-06-24T20:06:02.000Z","orgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","shortName":"canonical"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://launchpad.net/bugs/1862348"},{"tags":["x_refsource_CONFIRM"],"url":"https://usn.ubuntu.com/4315-1/"},{"name":"USN-4315-2","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"https://usn.ubuntu.com/4315-2/"}],"source":{"advisory":"https://usn.ubuntu.com/4315-1/","defect":["https://launchpad.net/bugs/1862348"],"discovery":"EXTERNAL"},"title":"World writable root owned lock file created in user controllable location","x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"AKA":"","ASSIGNER":"security@ubuntu.com","DATE_PUBLIC":"2020-04-02T03:04:00.000Z","ID":"CVE-2020-8831","STATE":"PUBLIC","TITLE":"World writable root owned lock file created in user controllable location"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Apport","version":{"version_data":[{"platform":"","version_affected":"<","version_name":"2.20.1","version_value":"2.20.1-0ubuntu2.23"},{"platform":"","version_affected":"<","version_name":"2.20.9","version_value":"2.20.9-0ubuntu7.14"},{"platform":"","version_affected":"<","version_name":"2.20.11","version_value":"2.20.11-0ubuntu8.8"},{"platform":"","version_affected":"<","version_name":"2.20.11","version_value":"2.20.11-0ubuntu22"}]}}]},"vendor_name":"Canonical"}]}},"configuration":[],"credit":[{"lang":"eng","value":"Maximilien Bourgeteau"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Apport creates a world writable lock file with root ownership in the world writable /var/lock/apport directory. 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