Vulnerability in github.com/cloudflare/goflow/v3 (CVE-2022-2529)
Summary
Vulnerability in github.com/cloudflare/goflow/v3 (CVE-2022-2529). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 3.4.4 or later.
Original description
The description as published by the source.
sflow 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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2022-2529 has been found in github.com/cloudflare/goflow/v3.
Risk of unauthorized operations or information disclosure.
What to do: upgrade github.com/cloudflare/goflow/v3 to 3.4.4 or later.
If unsure, ask your IT team or search "github.com/cloudflare/goflow/v3 CVE-2022-2529" on the vendor's site.
CVE-2022-2529 (github.com/cloudflare/goflow/v3) — CWE-20
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 3.4.4 — apply immediately
Workaround: A possible workaround is to not have your goflow collector publicly reachable.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-20) exists in github.com/cloudflare/goflow/v3.
Check the vendor advisory for the affected versions of github.com/cloudflare/goflow/v3.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 3.4.4.
Workaround: A possible workaround is to not have your goflow collector publicly reachable.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/cloudflare/goflow/v3' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'github.com/cloudflare/goflow/v3' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
github.com/cloudflare/goflow/v3を grep し、稼働しているサービス・バージョンを把握する。 -
2Apply temporary workaround mitigate
A possible workaround is to not have your goflow collector publicly reachable.パッチが適用されるまでの応急処置として、A possible workaround is to not have your goflow collector publicly reachable. を実施。回避策の副作用 (機能低下) を確認した上で。
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3Apply patch patch
Upgrade github.com/cloudflare/goflow/v3 to 3.4.4ステージング環境で 3.4.4 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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4Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- web github.com
- web github.com
- web github.com