CVE-2017-14178 Security feature bypass in snapd

High 7.5 Published Updated

Unprivileged users can bypass systemd-journald access restrictions to read system logs via the snap logs command.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-14178?

CVE-2017-14178 is a high-severity vulnerability in snapd, published on 2 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In snapd 2.27 through 2.29.2 the 'snap logs' command could be made to call journalctl without match arguments and therefore allow unprivileged, unauthenticated users to bypass systemd-journald's access restrictions.

Weakness: CWE-755

Which versions are affected by CVE-2017-14178?

It affects 1 product.

Products include Snapcraft Snapd.

How do I fix CVE-2017-14178?

Upgrade to a fixed version.

Is CVE-2017-14178 being exploited?

There is no known exploitation of CVE-2017-14178 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2017-14178, UBUNTU-CVE-2017-14178.

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