CVE-2019-10147 Privilege escalation in rkt

Medium 4.7 Published Updated

Attackers can escape container isolation via rkt enter to access host resources due to missing cgroup limits.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-10147?

CVE-2019-10147 is a medium-severity vulnerability in [UNKNOWN] rkt, published on 3 Jun 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

rkt through version 1.30.0 does not isolate processes in containers that are run with `rkt enter`. Processes run with `rkt enter` are not limited by cgroups during stage 2 (the actual environment in which the applications run). Compromised containers could exploit this flaw to access host resources.

Weakness: CWE-862, CWE-250

Which versions are affected by CVE-2019-10147?

It affects 1 product.

Products include Redhat Rkt.

How do I fix CVE-2019-10147?

No fix has been published for CVE-2019-10147 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-10147 being exploited?

There is no known exploitation of CVE-2019-10147 in the wild and no public exploit code.

Sources

Also known as GHSA-mr55-c2c7-jch7, UBUNTU-CVE-2019-10147.

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