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CLSA-2023-1684277794
Vulnerability in linux-buildinfo-4.4.0-240-tuxcare.els11-generic (CLSA-2023-1684277794)
Summary
vulnerability in linux-buildinfo-4.4.0-240-tuxcare.els11-generic (CLSA-2023-1684277794). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `4.4.0-240.274` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CLSA-2023-1684277794** has been found in linux-buildinfo-4.4.0-240-tuxcare.els11-generic.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade linux-buildinfo-4.4.0-240-tuxcare.els11-generic to **4.4.0-240.274** or later.
If unsure, ask your IT team or search "linux-buildinfo-4.4.0-240-tuxcare.els11-generic CLSA-2023-1684277794" on the vendor's site.
CLSA-2023-1684277794 (linux-buildinfo-4.4.0-240-tuxcare.els11-generic) —
Patched: `4.4.0-240.274` — 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 linux-buildinfo-4.4.0-240-tuxcare.els11-generic.
📍 Affected scope
linux-buildinfo-4.4.0-240-tuxcare.els11-generic — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **4.4.0-240.274**.
🛡️ 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 'linux-buildinfo-4.4.0-240-tuxcare.els11-generic' .` 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 'linux-buildinfo-4.4.0-240-tuxcare.els11-generic' . | 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 `linux-buildinfo-4.4.0-240-tuxcare.els11-generic` 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 linux-buildinfo-4.4.0-240-tuxcare.els11-generic to 4.4.0-240.274ステージング環境で 4.4.0-240.274 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
linux-buildinfo-4.4.0-240-tuxcare.els11-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-buildinfo-4.4.0-240-tuxcare.els11-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-cloud-tools-4.4.0-240-tuxcare.els11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-cloud-tools-4.4.0-240-tuxcare.els11-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-cloud-tools-4.4.0-240-tuxcare.els11-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-cloud-tools-common
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-cloud-tools-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-cloud-tools-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-crashdump
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-doc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-headers-4.4.0-240-tuxcare.els11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-headers-4.4.0-240-tuxcare.els11-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-headers-4.4.0-240-tuxcare.els11-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-headers-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-headers-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-image-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-image-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-image-unsigned-4.4.0-240-tuxcare.els11-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-image-unsigned-4.4.0-240-tuxcare.els11-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-libc-dev
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-modules-4.4.0-240-tuxcare.els11-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-modules-4.4.0-240-tuxcare.els11-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-modules-extra-4.4.0-240-tuxcare.els11-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-source
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-source-4.4.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-tools-4.4.0-240-tuxcare.els11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-tools-4.4.0-240-tuxcare.els11-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-tools-4.4.0-240-tuxcare.els11-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-tools-common
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-tools-generic
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]
TuxCare:Ubuntu:16.04
linux-tools-host
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-240.274"}]}]
TuxCare:Ubuntu:16.04
linux-tools-lowlatency
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0.240.274"}]}]