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CVE-2022-3277· NVD / CVE Program· CNA redhat

An uncontrolled resource consumption flaw was found in openstack-neutron.

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 64.1% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: neutron (Debian:12) 2:21.0.0~rc1-3; neutron (PyPI) 19.5.0, 20.3.0, 18.6.0; openstack-neutron (Red Hat:openstack:16.1::el8) 1:15.2.1-1.20221005123225.40d217c.el8ost.

Low priority for now. Upgrade to neutron (Debian:12) 2:21.0.0~rc1-3; neutron (PyPI) 19.5.0, 20.3.0, 18.6.0; openstack-neutron (Red Hat:openstack:16.1::el8) 1:15.2.1-1.20221005123225.40d217c.el8ost or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An uncontrolled resource consumption flaw was found in openstack-neutron. This flaw allows a remote authenticated user to query a list of security groups for an invalid project. This issue creates resources that are unconstrained by the user's quota. If a malicious user were to submit a significant number of requests, this could lead to a denial of service.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Mar 6, 2023
Updated
Jun 17, 2026
EPSS
1.0% · 64th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
openstackneutron
redhatopenstack platform

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • openstack neutronbefore 18.6.0
  • openstack neutron19.0.0 and later · before 19.5.0
  • redhat openstack platform13.0
  • redhat openstack platform16.1
  • redhat openstack platform16.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a openstack-neutron

    • As shipped with Red Hat Openstack 13, 16.1, and 16.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12neutronbefore 2:21.0.0~rc1-32:21.0.0~rc1-3
PyPIneutronfrom 19.0.0.0rc1 · before 19.5.019.5.0
PyPIneutronfrom 20.0.0.0rc1 · before 20.3.020.3.0
PyPIneutronbefore 18.6.018.6.0
Red Hat:openstack:16.1::el8openstack-neutronbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-commonbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-linuxbridgebefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-macvtap-agentbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-metering-agentbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-ml2before 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-openvswitchbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-rpc-serverbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8openstack-neutron-sriov-nic-agentbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.1::el8python3-neutronbefore 1:15.2.1-1.20221005123225.40d217c.el8ost1:15.2.1-1.20221005123225.40d217c.el8ost
Red Hat:openstack:16.2::el8openstack-neutronbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-commonbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-linuxbridgebefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-macvtap-agentbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-metering-agentbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-ml2before 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-openvswitchbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-rpc-serverbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8openstack-neutron-sriov-nic-agentbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost
Red Hat:openstack:16.2::el8python3-neutronbefore 1:15.3.5-2.20221005184727.c81fb5b.el8ost1:15.3.5-2.20221005184727.c81fb5b.el8ost

+1

Same product

openstack: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-8914The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended ICMPv6-spoofin
    37Monitor
  • CVE-2014-0187The openvswitch-agent process in OpenStack Neutron 2013.1 before 2013.2.4 and 2014.1 before 2014.1.1 allows remote authenticated users to by
    37Monitor
  • CVE-2021-38598OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when the linuxbridge driver with ebtab
    36Monitor
  • CVE-2016-5363The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended MAC-spoofing p
    33Monitor
  • CVE-2016-5362The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing
    33Monitor
  • CVE-2014-3632The default configuration in a sudoers file in the Red Hat openstack-neutron package before 2014.1.2-4, as used in Red Hat Enterprise Linux
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:neutron2:21.0.0~rc1-3 · Debian:12Package registry (OSV)
PyPI:neutron18.6.0Package registry (OSV)
PyPI:neutron19.5.0Package registry (OSV)
PyPI:neutron20.3.0Package registry (OSV)
red hat:openstack-neutron1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-common1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-linuxbridge1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-macvtap-agent1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-metering-agent1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-ml21:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-openvswitch1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-rpc-server1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:openstack-neutron-sriov-nic-agent1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)
red hat:python3-neutron1:15.3.5-2.20221005184727.c81fb5b.el8ost · Red Hat:openstack:16.2::el8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
function expand(node) {  return node.children.map(expand);}

Fixed

ts
const MAX_DEPTH = 32;function expand(node, depth = 0) {  if (depth > MAX_DEPTH) throw new Error("too deep");  return node.children.map((c) => expand(c, depth + 1));}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records