CVEvulnerability
CVE-2020-15703
3.3 LOW
Official page ↗
- Status
- Modified
- Published
- 2020-10-31
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.0 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CVSS 3.1 ([email protected])
- 3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-22
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.
Affected configurations
• aptdaemon project aptdaemon 1.1.1
Related
Weakness · CWE (1)
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
References
- https://ubuntu.com/security/notices/USN-4537-1 Patch, Third Party Advisory
- https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html Exploit, Third Party Advisory
- https://ubuntu.com/security/notices/USN-4537-1 Patch, Third Party Advisory
- https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html Exploit, Third Party Advisory