{"id":"CVE-2020-15703","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-15703","generatedAt":"2026-10-27T23:43:53.485Z","title":"There is no input validation on the Locale property in an apt transaction.","description":"There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.","published":"2020-10-31T04:15:11.000Z","lastModified":"2026-06-17T02:57:05.000Z","status":"Modified","sourceIdentifier":"security@ubuntu.com","cvss":{"version":"3.1","score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-22"],"affected":["aptdaemon project/aptdaemon"],"epss":{"score":0.0049,"percentile":0.41847,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.49%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://ubuntu.com/security/notices/USN-4537-1","tags":["Patch","Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html","tags":["Exploit","Third Party Advisory"],"source":"security@ubuntu.com"},{"url":"https://ubuntu.com/security/notices/USN-4537-1","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-15703","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}