CVE-2020-15703Medium· 4.0▾ Sunlitaptdaemon Information Disclosure via Improper Input Validation in Transaction class
▾ Sunlit zone — Low / medium · no exploitation signal
impact 22 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.5%
0.5% → 0.5%
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.
aptdaemon < 1.1.1Upgrade to a patched release:
aptdaemon 1.1.1