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CVE-2014-4167

13
FAUCET Score

CVE-2014-4167 describes a denial-of-service vulnerability in OpenStack Neutron's L3-agent, affecting versions before 2013.2.4, 2014.1.2, and Juno-2. Authenticated remote attackers can trigger an IPv4 address attachment outage by attaching an IPv6 private subnet to an L3 router. With a CVSS score of 3.5, this vulnerability has a network attack vector, medium complexity, and a partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2011.1, <= 2013.2.3CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
2014.1CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:2014.1:*:*:*:*:*:*:*
2014.1.1CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:2014.1.1:*:*:*:*:*:*:*
13.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.5LOW

AV:N/AC:M/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.66%
Probability of exploitation in next 30 days
EPSS Percentile
74.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0166 is in the 83rd percentile among its peer group of 1,638 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: OpenStack 4 for RHEL 6Fixed in: openstack-neutron-0:2013.2.3-14.el6ost
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)Fixed in: openstack-neutron

Vendor Advisories (1)

redhatCVE-2014-4167Moderate

openstack-neutron: L3-agent denial of service through IPv6 subnet

Apr 17, 2014

References

bugs.launchpad.net / neutron/+bug/1309195
Issue TrackingVendor Advisory
seclists.org / oss-sec/2014/q2/572
Mailing ListThird Party Advisory
secunia.com / advisories/59533
Permissions Required
ubuntu.com / usn/USN-2255-1
Third Party Advisory