GitHub Advisoryadvisory · PyPI
GHSA-wpmr-q825-x4c6 aptdaemon Information Disclosure via Improper Input Validation in Transaction class
MEDIUM
Official page ↗
- Aliases
- CVE-2020-15703
- Ecosystem
- PyPI
- Packages
- aptdaemon
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-200
- Reviewed
- 2023-08-07
Affected packages
• PyPI aptdaemon: < 1.1.1 → fixed in 1.1.1
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.
Related
Alias · CVE (1)
- CVE-2020-15703 There is no input validation on the Locale property in an apt transaction. vulnerability
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-15703 advisory
- https://bugs.launchpad.net/ubuntu/+source/aptdaemon/+bug/1888235 web
- https://github.com/linuxmint/aptdaemon package
- https://github.com/linuxmint/aptdaemon/blob/4d24cb61575ac6fbee8d5e61ef933e6093ee0a2e/debian/patches/CVE-2020-15703.patch web
- https://ubuntu.com/security/notices/USN-4537-1 web
- https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html web