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Security Advisories: GSA_kwCzR0hTQS13cG1yLXE4MjUteDRjNs4AAmd1

aptdaemon Information Disclosure via Improper Input Validation in Transaction class

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.

Permalink: https://github.com/advisories/GHSA-wpmr-q825-x4c6
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS13cG1yLXE4MjUteDRjNs4AAmd1
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 2 years ago
Updated: 9 months ago

CVSS Score: 4.0
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Identifiers: GHSA-wpmr-q825-x4c6, CVE-2020-15703
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-15703
• https://ubuntu.com/security/notices/USN-4537-1
• https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html
• https://bugs.launchpad.net/ubuntu/+source/aptdaemon/+bug/1888235
• https://github.com/linuxmint/aptdaemon/blob/4d24cb61575ac6fbee8d5e61ef933e6093ee0a2e/debian/patches/CVE-2020-15703.patch
• https://github.com/advisories/GHSA-wpmr-q825-x4c6

Repository: https://github.com/linuxmint/aptdaemon
Blast Radius: 1.9

Affected Packages