VDB
CVE-2020-15703
CVE-2020-15703
PUBLISHED
CVSS 4 MEDIUM
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.
EPSS 0.49% · 40.2th percentile
Risk Scores
CVSS 3.1
4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score
0.49%
40.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | aptdaemon | 0, 1.1.1+bzr982-0ubuntu14, 1.1.1+bzr982-0ubuntu14.1 |
| Ubuntu:18.04:LTS | aptdaemon | *, 0, 1.1.1+bzr982-0ubuntu17 |
| Ubuntu:20.04:LTS | aptdaemon | 0, 1.1.1+bzr982-0ubuntu28, 1.1.1+bzr982-0ubuntu30 |
Timeline
- Sep 24, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 1, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 4, 2022 EPSS Score
- Sep 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-15703 third-party-advisory
- https://ubuntu.com/security/notices/USN-4537-1 vendor-advisory
- https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-15703 third-party-advisory