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USN-4778-1
Vulnerability in ocaml (USN-4778-1)
Summary
vulnerability in ocaml (USN-4778-1). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `4.01.0-3ubuntu3.1+esm1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **USN-4778-1** has been found in ocaml.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade ocaml to **4.01.0-3ubuntu3.1+esm1** or later.
If unsure, ask your IT team or search "ocaml USN-4778-1" on the vendor's site.
USN-4778-1 (ocaml) —
Patched: `4.01.0-3ubuntu3.1+esm1` — 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
**A vulnerability** (unclassified) exists in ocaml.
📍 Affected scope
ocaml — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **4.01.0-3ubuntu3.1+esm1**.
🛡️ 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 'ocaml' .` 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 'ocaml' . | 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 `ocaml` 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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6Apply patch patch
Upgrade ocaml to 4.01.0-3ubuntu3.1+esm1ステージング環境で 4.01.0-3ubuntu3.1+esm1 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。
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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。
Affected packages
Ubuntu:Pro:14.04:LTS
ocaml
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.01.0-3ubuntu3.1+esm1"}]}]
Ubuntu:Pro:16.04:LTS
ocaml
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.02.3-5ubuntu2+esm1"}]}]
Ubuntu:Pro:18.04:LTS
ocaml
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.05.0-10ubuntu1+esm1"}]}]