Directory Traversal Affecting aptdaemon package, versions <1.1.1+bzr982-0ubuntu32.2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-UBUNTU2004-APTDAEMON-1012554
  • published24 Sept 2020
  • disclosed31 Oct 2020

Introduced: 24 Sep 2020

CVE-2020-15703  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 aptdaemon to version 1.1.1+bzr982-0ubuntu32.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream aptdaemon package and not the aptdaemon package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1