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CVE-2017-14491 critical CVSS 9.8

Out-of-Bounds Write in platform/external/dnsmasq (CVE-2017-14491)

Summary

out-of-bounds write in platform/external/dnsmasq (CVE-2017-14491). Successful exploitation can lead to full system takeover. Mitigation: upgrade to `11:2021-03-01` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2017-14491** has been found in platform/external/dnsmasq. Successful exploitation can lead to full system takeover. CVSS score: 9.8/10. What to do: upgrade platform/external/dnsmasq to **11:2021-03-01** or later. If unsure, ask your IT team or search "platform/external/dnsmasq CVE-2017-14491" on the vendor's site.
CVE-2017-14491 (platform/external/dnsmasq) — CWE-787 / CVSS v3 9.8 Attack vector: remote (network-reachable) / unauthenticated / no user interaction Patched: `11:2021-03-01` — apply immediately 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.
❓ What is the problem
**out-of-bounds write** (CWE-787) exists in platform/external/dnsmasq.
📍 Affected scope
platform/external/dnsmasq — .
🔥 Severity
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **11:2021-03-01**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'platform/external/dnsmasq' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response Actions (7 steps)

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'platform/external/dnsmasq' . | 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 `platform/external/dnsmasq` を grep し、稼働しているサービス・バージョンを把握する。

  2. 6
    Apply patch patch 
    Upgrade platform/external/dnsmasq to 11:2021-03-01

    ステージング環境で 11:2021-03-01 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と、Step 3 で見つけた異常検知の続報チェックを含めること。

  3. 7
    Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。

Affected packages

Android platform/external/dnsmasq
[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-03-01"}]}]

References

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