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CVE-2025-71239
medium
CVSS 5.5
Vulnerability in linux (CVE-2025-71239)
Summary
vulnerability in linux (CVE-2025-71239). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-71239** has been found in linux.
Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2025-71239" on the vendor's site.
CVE-2025-71239 (linux) — CVSS v3 5.5
Attack vector: local / no user interaction
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
**A vulnerability** (unclassified) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: Medium (CVSS 5.5/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 'linux' .` 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
-
1Identify exposure identify
grep -r 'linux' . | 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 `linux` を grep し、稼働しているサービス・バージョンを把握する。
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7Post-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。
References
- advisory 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- web https://git.kernel.org/stable/c/3e762a03713e8c25ca0108c075d662c897fc0623
- web https://git.kernel.org/stable/c/4f493a6079b588cf1f04ce5ed6cdad45ab0d53dc
- web https://git.kernel.org/stable/c/4fed776ca86378da7dd743a7b648e20b025ba8ef
- web https://git.kernel.org/stable/c/91e27bc79c3bca93c06bf5a471d47df9a35b3741
- web https://git.kernel.org/stable/c/c4334c0d0e7d6f02ed93756fd4ba807e3d00c05f
- web https://nvd.nist.gov/vuln/detail/CVE-2025-71239
- web https://git.kernel.org/stable/c/3ee75b13ea5f05ff9adc784b2464825bd70eb119
- web https://git.kernel.org/stable/c/57489a89657cc94bf6ad8427d1902daba9156aa1
- web https://git.kernel.org/stable/c/f714315d7d68898d03093f67285256a8770f903c
- web https://www.bencteux.fr/posts/missing_syscalls_audit
- web https://github.com/advisories/GHSA-h5q3-ggp6-vf4c