Vulnerability in postgresql-13 (DEBIAN-CVE-2020-25695)

Summary

Vulnerability in postgresql-13 (DEBIAN-CVE-2020-25695). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 13.1-1 or later.

Original description

The description as published by the source.

A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. An attacker having permission to create non-temporary objects in at least one schema can execute arbitrary SQL functions under the identity of a superuser. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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-2020-25695 has been found in postgresql-13.
Successful exploitation can lead to full system takeover.
What to do: upgrade postgresql-13 to 13.1-1 or later.
If unsure, ask your IT team or search "postgresql-13 DEBIAN-CVE-2020-25695" on the vendor's site.

DEBIAN-CVE-2020-25695 (postgresql-13)
Attack vector: remote (network-reachable) / no user interaction
Patched: 13.1-1 — 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 postgresql-13.

📍 Affected scope

Check the vendor advisory for the affected versions of postgresql-13.

🔥 Severity

Severity: ?. Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 13.1-1.

🛡️ 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 'postgresql-13' . 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 'postgresql-13' . | 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 postgresql-13 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 postgresql-13 to 13.1-1
```
ステージング環境で 13.1-1 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 postgresql-13

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"13.1-1"}]}]

References

advisory security-tracker.debian.org