← Back
CLSA-2025-1739812242
Vulnerability in krb5-admin-server (CLSA-2025-1739812242)
Summary
vulnerability in krb5-admin-server (CLSA-2025-1739812242). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `1.13.2+dfsg-5ubuntu2.2+tuxcare.els5` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CLSA-2025-1739812242** has been found in krb5-admin-server.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade krb5-admin-server to **1.13.2+dfsg-5ubuntu2.2+tuxcare.els5** or later.
If unsure, ask your IT team or search "krb5-admin-server CLSA-2025-1739812242" on the vendor's site.
CLSA-2025-1739812242 (krb5-admin-server) —
Patched: `1.13.2+dfsg-5ubuntu2.2+tuxcare.els5` — 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 krb5-admin-server.
📍 Affected scope
krb5-admin-server — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.13.2+dfsg-5ubuntu2.2+tuxcare.els5**.
🛡️ 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 'krb5-admin-server' .` 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
-
1Identify exposure identify
grep -r 'krb5-admin-server' . | 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 `krb5-admin-server` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade krb5-admin-server to 1.13.2+dfsg-5ubuntu2.2+tuxcare.els5ステージング環境で 1.13.2+dfsg-5ubuntu2.2+tuxcare.els5 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。
-
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
TuxCare:Ubuntu:16.04
krb5-admin-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-doc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-gss-samples
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-k5tls
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-kdc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-kdc-ldap
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-locales
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-multidev
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-otp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-pkinit
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
krb5-user
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libgssapi-krb5-2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libgssrpc4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libk5crypto3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkadm5clnt-mit9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkadm5srv-mit9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkdb5-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkrad-dev
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkrad0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkrb5-3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkrb5-dev
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]
TuxCare:Ubuntu:16.04
libkrb5support0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.2+dfsg-5ubuntu2.2+tuxcare.els5"}]}]