In atomic-openshift before version 3.10.9 a malicious network-policy configuration can cause Openshift Routing to crash when using ovs-netw…

published 2018-07-05 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2949

cvss: 6.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

In atomic-openshift before version 3.10.9 a malicious network-policy configuration can cause Openshift Routing to crash when using ovs-networkpolicy plugin. An attacker can use this flaw to cause a Denial of Service (DoS) attack on an Openshift 3.9, or 3.7 Cluster.

Patch / fix

fixed in 1

redhat openshift 3.10.9

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-10885 updated 2026-06-30 cvss 6.5

atomic-openshift: Malicious network-policy can cause Openshift Routing DoS when using ovs-networkpolicy plugin

Red Hat OpenShift Enterprise 3 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +13 more
affected: workaround, no fix available “Use an alternative plugin such as ovs-subnet, or ovs-multitentant if delivering a multitentant service.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.62% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

[UNKNOWN] atomic-openshift

Classification

Weakness

CWE-20 Improper Input Validation

References

bugzilla.redhat.com /show_bug.cgi?id=CVE-2018-10885
issue-tracking, mitigation, vendor-advisory
securityfocus.com /bid/104688
vdb-entry, third-party-advisory

Sources

CVE List CVE-2018-10885
NVD CVE-2018-10885

Fencer Intel 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.

Summary