CVE-2019-14891

Severity: medium (CVSS 5.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-11-25 · updated 2026-06-17
Weakness: CWE-460

Description

A flaw was found in cri-o, as a result of all pod-related processes being placed in the same memory cgroup. This can result in container management (conmon) processes being killed if a workload process triggers an out-of-memory (OOM) condition for the cgroup. An attacker could abuse this flaw to get host network access on an cri-o host.

Affected products

Fedoraproject Fedora: all versions
cri-o: before 1.16.1 — fixed in 1.16.1
Red Hat OpenShift Container Platform 4.18: 3.11, 4.1, 4.2

How to fix

Upgrade to a fixed version: cri-o 1.16.1. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14891
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14891

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