CVE-2020-16128 json
Aptdaemon error messages disclosed file existence to unprivileged users via dbus properties
published 2020-12-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8094
- cvss
- 3.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.
Patch / fix
- Canonical aptdaemon 1.1.1+bzr982-0ubuntu14.5, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu34.1
- aptdaemon Ubuntu 16.04 LTS 1.1.1+bzr982-0ubuntu14.5
- aptdaemon Ubuntu 18.04 LTS 1.1.1+bzr982-0ubuntu19.5
- aptdaemon Ubuntu 20.04 LTS 1.1.1+bzr982-0ubuntu32.3
ubuntu advisories UBUNTU-CVE-2020-16128
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- usn.ubuntu.com/usn/usn-4664-1 advisory
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |
| NVD | 3.1 | 3.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Canonical aptdaemon
Classification
- Weakness
-
- CWE-209 Generation of Error Message Containing Sensitive Information
References
-
usn.ubuntu.com
/usn/usn-4664-1
patch, third-party-advisory
-
bugs.launchpad.net
/ubuntu/+source/aptdaemon/+bug/1899513
broken-link
Sources
- CVE List CVE-2020-16128
- NVD CVE-2020-16128
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.