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» GHSA-3vj4-cvjp-482h
Description
The 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-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via a link-local source address.
Basic information
Type
reviewed
Severity
critical Advisory on GitHub
Open advisory ↗ Repository advisory
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Source code
Browse source ↗ Published (advisory)
2022-05-14 02:19:49 UTC
Updated
2025-04-14 21:03:47 UTC
GitHub reviewed
2025-04-14 21:03:46 UTC
NVD published
2016-06-17
EPSS Score
Score
Percentile
6.66%
90.82%
CVSS Scores
Base score
Version
Severity
Vector
9.1
3.0
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CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
CWEs
CWE id
Name
CWE-923
Improper Restriction of Communication Channel to Intended Endpoints
Affected packages (2)
Vulnerable version ranges and first patched releases as published by GitHub.
Ecosystem
Package
Vulnerable range
First patched
Vulnerable functions
pip
neutron < 7.0.5
7.0.5
—
pip
neutron >= 8.0.0, < 8.1.1
8.1.1
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cvelogic
Threat Intelligence