CVE-2020-16128 Aptdaemon error messages disclosed file existence to unprivileged users via dbus properties

What is CVE-2020-16128?

CVE-2020-16128 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 9 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-209

Which versions are affected by CVE-2020-16128?

It affects 1 product.

Products include Canonical Ubuntu Linux.

How do I fix CVE-2020-16128?

Apply the vendor's patch.

Is CVE-2020-16128 being exploited?

There is no known exploitation of CVE-2020-16128 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hpfw-6cc8-9hhj, UBUNTU-CVE-2020-16128.