CVE-2014-8153: The L3 agent in OpenStack Neutron 2014.2.x before 2014.2.2, when using radvd 2.0+, allows remote authenticated

Routine

MEDIUM 4.0DOWNGRADEDOWNGRADE

CVE-2014-8153 is a medium-severity flaw (CVSS 4.0) affecting router advertisement daemon, neutron. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The L3 agent in OpenStack Neutron 2014.2.x before 2014.2.2, when using radvd 2.0+, allows remote authenticated users to cause a denial of service (blocked router update processing) by creating eight routers and assigning an ipv6 non-provider subnet to each.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.0 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-20
Published	2015-01-15
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: litech · openstack

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-01-15 15:59 UTCPublished CVE record published
2026-06-17 00:16 UTCUpdated Record last modified

litech router advertisement daemon DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy router-advertisement-daemon || rpm -q router-advertisement-daemon || router-advertisement-daemon --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison router-advertisement-daemon sudo apt install router-advertisement-daemon=<VERSION_BEFORE_2.0> sudo apt-mark hold router-advertisement-daemon

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list router-advertisement-daemon sudo dnf downgrade router-advertisement-daemon-<VERSION_BEFORE_2.0> sudo dnf versionlock add router-advertisement-daemon

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

openstack neutron DOWNGRADE

Affected: 2014.2 · 2014.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2014.2

1. Check installed version

apt-cache policy neutron || rpm -q neutron || neutron --version

2. No fixed release: DOWNGRADE to a release before 2014.2 (Debian / Ubuntu)

apt-cache madison neutron sudo apt install neutron=<VERSION_BEFORE_2014.2> sudo apt-mark hold neutron

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list neutron sudo dnf downgrade neutron-<VERSION_BEFORE_2014.2> sudo dnf versionlock add neutron

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-8153?

router advertisement daemon: downgrade or apply the listed mitigation; neutron: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-8153 being exploited?

CVE-2014-8153 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-8153 affect?

CVE-2014-8153 affects router advertisement daemon, neutron. Severity is medium (CVSS 4.0). The L3 agent in OpenStack Neutron 2014.2.x before 2014.2.2, when using radvd 2.0+, allows remote authenticated users to cause a denial of service (blocked router update processing) by creating eight routers and assigning an ipv6 non-provide

How urgent is CVE-2014-8153?

Priority 34/100. No elevated risk signals yet.

Software pages

OpenStack vulnerabilities

Related CVEs

CVE-2011-3605 MEDIUM 5.0 UPGRADE The process_rs function in the router advertisement daemon (radvd) before 1.8.2, when UnicastOnly is enabled,
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CVE-2011-3603 MEDIUM 4.4 UPGRADE The router advertisement daemon (radvd) before 1.8.2 does not properly handle errors in the privsep_init funct
CVE-2011-3602 MEDIUM 6.4 UPGRADE Directory traversal vulnerability in device-linux.c in the router advertisement daemon (radvd) before 1.8.2 al
CVE-2011-3601 HIGH 7.5 UPGRADE Buffer overflow in the process_ra function in the router advertisement daemon (radvd) before 1.8.2 allows remo

References

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