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CVE-2025-37909
medium
CVSS 5.5
Vulnerability in linux (CVE-2025-37909)
Summary
vulnerability in linux (CVE-2025-37909). Risk of unauthorized operations or information disclosure. Exploitable via ``skb``.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-37909** has been found in linux.
Attackers can target a specific entry point like ``skb`` over the network to misuse the product.
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-2025-37909" on the vendor's site.
CVE-2025-37909 (linux) — CWE-401 / CVSS v3 5.5
Attack vector: local / no user interaction
Attack surface: `skb`
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** (CWE-401) exists in linux. Attackers reach the vulnerable code path via ``skb`` without authentication.
📍 Affected scope
linux — . Attack surface: `skb`.
🔥 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
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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。
-
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
- web https://git.kernel.org/stable/c/093855ce90177488eac772de4eefbb909033ce5f
- web https://git.kernel.org/stable/c/189b05f189cac9fd233ef04d31cb5078c4d09c39
- web https://git.kernel.org/stable/c/2d52e2e38b85c8b7bc00dca55c2499f46f8c8198
- web https://git.kernel.org/stable/c/6c65ee5ad632eb8dcd3a91cf5dc99b22535f44d9
- web https://git.kernel.org/stable/c/a0e0efbabbbe6a1859bc31bf65237ce91e124b9b
- web https://git.kernel.org/stable/c/dae1ce27ceaea7e1522025b15252e3cc52802622
- web https://git.kernel.org/stable/c/df993daa4c968b4b23078eacc248f6502ede8664
- web https://git.kernel.org/stable/c/f42c18e2f14c1b1fdd2a5250069a84bc854c398c
- web https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
- web https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- web https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- web https://nvd.nist.gov/vuln/detail/CVE-2025-37909
- web https://github.com/advisories/GHSA-pgg7-9g7g-jg57