Vulnerability in openjdk-11 (DEBIAN-CVE-2020-14593)

Summary

Vulnerability in openjdk-11 (DEBIAN-CVE-2020-14593). Data can be tampered with by attackers. Mitigation: upgrade to 11.0.8+10-1 or later.

Original description

The description as published by the source.

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: 2D). Supported versions that are affected are Java SE: 7u261, 8u251, 11.0.7 and 14.0.1; Java SE Embedded: 8u251. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, Java SE Embedded, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE, Java SE Embedded accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 7.4 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N).

Source: OSV.dev (Open Source Vulnerabilities) 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 DEBIAN-CVE-2020-14593 has been found in openjdk-11.
Data can be tampered with by attackers.
What to do: upgrade openjdk-11 to 11.0.8+10-1 or later.
If unsure, ask your IT team or search "openjdk-11 DEBIAN-CVE-2020-14593" on the vendor's site.

DEBIAN-CVE-2020-14593 (openjdk-11)
Attack vector: remote (network-reachable) / unauthenticated
Patched: 11.0.8+10-1 — 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 openjdk-11.

📍 Affected scope

Check the vendor advisory for the affected versions of openjdk-11.

🔥 Severity

Severity: ?. Data can be tampered with by attackers.

🔧 How to fix

Update to 11.0.8+10-1.

🛡️ 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 'openjdk-11' . 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

1
Identify exposure identify
```
grep -r 'openjdk-11' . | 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 openjdk-11 を grep し、稼働しているサービス・バージョンを把握する。
2
Apply patch patch
```
Upgrade openjdk-11 to 11.0.8+10-1
```
ステージング環境で 11.0.8+10-1 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。
3
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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Debian:11 openjdk-11

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.8+10-1"}]}]

References

advisory security-tracker.debian.org