Vulnerability in strongswan
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 UBUNTU-CVE-2022-40617 has been found in strongswan.
Risk of unauthorized operations or information disclosure.
What to do: upgrade strongswan to 5.1.2-0ubuntu2.11+esm3 or later.
If unsure, ask your IT team or search "strongswan UBUNTU-CVE-2022-40617" on the vendor's site.
UBUNTU-CVE-2022-40617 (strongswan)
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 5.1.2-0ubuntu2.11+esm3 — 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.
A vulnerability (unclassified) exists in strongswan.
Check the vendor advisory for the affected versions of strongswan.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 5.1.2-0ubuntu2.11+esm3.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'strongswan' . 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 exposureidentify
grep -r 'strongswan' . | 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
strongswan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 patchpatch
Upgrade strongswan to 5.1.2-0ubuntu2.11+esm3ステージング環境で 5.1.2-0ubuntu2.11+esm3 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 verificationverify
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
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Ubuntu:Pro:14.04:LTS | strongswan |
< 5.1.2-0ubuntu2.11+esm3 |
5.1.2-0ubuntu2.11+esm3 |
| Ubuntu:Pro:16.04:LTS | strongswan |
< 5.3.5-1ubuntu3.8+esm3 |
5.3.5-1ubuntu3.8+esm3 |
| Ubuntu:Pro:FIPS-updates:16.04:LTS | strongswan |
< 5.3.5-1ubuntu3.fips.3.8.6 |
5.3.5-1ubuntu3.fips.3.8.6 |
| Ubuntu:Pro:FIPS:16.04:LTS | strongswan |
All versions |
— |
| Ubuntu:18.04:LTS | strongswan |
< 5.6.2-1ubuntu2.9 |
5.6.2-1ubuntu2.9 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | strongswan |
< 5.6.2-1ubuntu2.fips.2.9 |
5.6.2-1ubuntu2.fips.2.9 |
| Ubuntu:Pro:FIPS:18.04:LTS | strongswan |
All versions |
— |
| Ubuntu:20.04:LTS | strongswan |
< 5.8.2-1ubuntu3.5 |
5.8.2-1ubuntu3.5 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | strongswan |
< 5.8.2-1ubuntu3.fips.3.5 |
5.8.2-1ubuntu3.fips.3.5 |
| Ubuntu:Pro:FIPS:20.04:LTS | strongswan |
All versions |
— |
| Ubuntu:22.04:LTS | strongswan |
< 5.9.5-2ubuntu2.1 |
5.9.5-2ubuntu2.1 |
Original description The description as published by the source.
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory ubuntu.com
- advisory ubuntu.com
- report ubuntu.com
- report cve.org