Vulnerability in erlang
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-2025-46712 has been found in erlang.
Risk of unauthorized operations or information disclosure.
What to do: upgrade erlang to 1:24.2.1+dfsg-1ubuntu0.5 or later.
If unsure, ask your IT team or search "erlang UBUNTU-CVE-2025-46712" on the vendor's site.
UBUNTU-CVE-2025-46712 (erlang)
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 1:24.2.1+dfsg-1ubuntu0.5 — 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 erlang.
Check the vendor advisory for the affected versions of erlang.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 1:24.2.1+dfsg-1ubuntu0.5.
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 'erlang' . 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 'erlang' . | 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
erlang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 erlang to 1:24.2.1+dfsg-1ubuntu0.5ステージング環境で 1:24.2.1+dfsg-1ubuntu0.5 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 | erlang |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | erlang |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | erlang |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | erlang |
All versions |
— |
| Ubuntu:22.04:LTS | erlang |
< 1:24.2.1+dfsg-1ubuntu0.5 |
1:24.2.1+dfsg-1ubuntu0.5 |
| Ubuntu:24.04:LTS | erlang |
< 1:25.3.2.8+dfsg-1ubuntu4.4 |
1:25.3.2.8+dfsg-1ubuntu4.4 |
| Ubuntu:25.10 | erlang |
< 1:27.3.4.1+dfsg-1 |
1:27.3.4.1+dfsg-1 |
Original description The description as published by the source.
Erlang/OTP is a set of libraries for the Erlang programming language. In versions prior to OTP-27.3.4 (for OTP-27), OTP-26.2.5.12 (for OTP-26), and OTP-25.3.2.21 (for OTP-25), Erlang/OTP SSH fails to enforce strict KEX handshake hardening measures by allowing optional messages to be exchanged. This allows a Man-in-the-Middle attacker to inject these messages in a connection during the handshake. This issue has been patched in versions OTP-27.3.4 (for OTP-27), OTP-26.2.5.12 (for OTP-26), and OTP-25.3.2.21 (for OTP-25).
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report github.com
- report github.com
- report github.com
- report github.com