CVE-2022-2529
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedsflow decode package does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume large amounts of memory resulting in a denial of service.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe sflow decode package lacks sufficient input validation when processing incoming packets. Attackers can send specially crafted malformed sflow packets that cause excessive memory allocation, leading to memory exhaustion and denial of service.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 3.4.4CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify Goflow installationCheck for the presence of the goflow binary or service (e.g., 'which goflow', 'systemctl list-units | grep goflow', or check /usr/bin/ for goflow)Affected if Goflow is installed and processing sFlow packets
-
Determine installed Goflow versionRun 'gooflow -v' or check the package version via your package manager (e.g., 'dpkg -l goflow' or 'rpm -qi goflow')Affected if Version is below 3.4.4 (e.g., 3.4.3, 3.4.0, any 3.x version prior to 3.4.4, or earlier major versions)
-
Verify sFlow input is enabledInspect the Goflow configuration file (typically in /etc/goflow/ or as specified in startup arguments) and confirm sFlow collector receiving is enabledAffected if sFlow packet reception is enabled and exposed to network traffic
If Goflow is running with sFlow enabled and the installed version is below 3.4.4, the environment is vulnerable to memory exhaustion via malformed sFlow packets.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped3.4.4
Implement strict packet sanitization and bounds checking in the sflow decoder. Add memory limits and validation for packet fields before processing to prevent unbounded memory allocation.
3.4.4
- Identify the current Goflow version in use by checking the binary or dependencies
- Update Goflow to version 3.4.4 or later. If using Go modules, run: go get github.com/cloudflare/goflow/v3@latest or specify the version in go.mod
- Verify the upgrade was successful by checking the new version number
- Restart the Goflow service to load the updated package
- Monitor the service to ensure it handles malformed sFlow packets correctly without excessive memory consumption
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-2529 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-2529 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data