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GHSA-wpmr-q825-x4c6

aptdaemon Information Disclosure via Improper Input Validation in Transaction class

Source: GitHub Advisory Database (reviewed) Moderate CVE-2020-15703

Packages

EcosystemPackageAffectedFixed in
PyPI aptdaemon < 1.1.1 1.1.1

Details

As written in the advisory (Markdown source, shown as plain text).

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

External links from the advisory. They lead to third-party sites.