CVE-2020-15703

low

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.

References

https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html

https://ubuntu.com/security/notices/USN-4537-1

Details

Source: Mitre, NVD

Published: 2020-10-31

Updated: 2020-11-17

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 3.3

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Severity: Low