Cette page suit l'état du correctif pour Ubuntu. La vulnérabilité elle-même est décrite sur la page CVE principale. Voir CVE-2023-52633 →

UBUNTU-CVE-2023-52633

Vulnérabilité dans linux-aws-5.15 (UBUNTU-CVE-2023-52633)

Résumé

Vulnérabilité dans linux-aws-5.15 (UBUNTU-CVE-2023-52633). Risque d'opérations non autorisées ou de divulgation. Atténuation : mise à jour vers 5.15.0-1061.67~20.04.1 ou plus.

Description d'origine

La description telle que publiée par la source (souvent en anglais).

In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In 'basic' time-travel mode (without =inf-cpu or =ext), we still get timer interrupts. These can happen at arbitrary points in time, i.e. while in timer_read(), which pushes time forward just a little bit. Then, if we happen to get the interrupt after calculating the new time to push to, but before actually finishing that, the interrupt will set the time to a value that's incompatible with the forward, and we'll crash because time goes backwards when we do the forwarding. Fix this by reading the time_travel_time, calculating the adjustment, and doing the adjustment all with interrupts disabled.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Résumé généré automatiquement

Assemblé par SecPulse à partir des données sources (CVSS, CWE, versions affectées) à l'aide de modèles, sans IA. Vérifiez la description d'origine et les références ci-dessous.

Une vulnérabilité référencée UBUNTU-CVE-2023-52633 a été découverte dans linux-aws-5.15.
Risque d'opérations non autorisées ou de divulgation.
Action : mettez à jour linux-aws-5.15 vers 5.15.0-1061.67~20.04.1 ou supérieur.
En cas de doute, contactez votre service informatique ou cherchez « linux-aws-5.15 UBUNTU-CVE-2023-52633 » sur le site de l'éditeur.

UBUNTU-CVE-2023-52633 (linux-aws-5.15)
Vecteur d'attaque : local
Correctif : 5.15.0-1061.67~20.04.1 — appliquer immédiatement
Plan : 1) Audit SBOM, 2) Mise à jour staging→prod, 3) Surveillance WAF/proxy sur les endpoints affectés, 4) Recherche d'IOC dans les logs.
Réfs : voir GHSA / avis éditeur / version corrigée liés sur cette page.

❓ Quel est le problème

Une vulnérabilité (non classée) affecte linux-aws-5.15.

📍 Périmètre concerné

Consultez l'avis de l'éditeur pour les versions affectées de linux-aws-5.15.

🔥 Gravité

Gravité : ?. Risque d'opérations non autorisées ou de divulgation.

🔧 Comment corriger

Mettre à jour vers 5.15.0-1061.67~20.04.1.

🛡️ Contournement

En attendant le correctif : désactivez la fonctionnalité concernée, appliquez des règles WAF, ou restreignez l'accès par ACL réseau.

🔍 Détection

Recherchez dans les logs des requêtes correspondant aux IOC connus de cette CVE. Auditez les SBOM/dépendances.

Actions de réponse

Étapes concrètes et exemples de commandes que les équipes SOC/SRE doivent exécuter dans l'ordre

1
Identify exposure identify
```
grep -r 'linux-aws-5.15' . | 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-aws-5.15 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 linux-aws-5.15 to 5.15.0-1061.67~20.04.1
```
ステージング環境で 5.15.0-1061.67~20.04.1 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。

Paquets affectés

Ubuntu:20.04:LTS linux-aws-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1061.67~20.04.1"}]}]

Ubuntu:20.04:LTS linux-azure-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1063.72~20.04.1"}]}]

Ubuntu:20.04:LTS linux-gcp-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1059.67~20.04.1"}]}]

Ubuntu:20.04:LTS linux-gkeop-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1044.51~20.04.1"}]}]

Ubuntu:20.04:LTS linux-hwe-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-106.116~20.04.1"}]}]

Ubuntu:20.04:LTS linux-ibm-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1054.57~20.04.1"}]}]

Ubuntu:20.04:LTS linux-intel-iotg-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1058.64~20.04.1"}]}]

Ubuntu:20.04:LTS linux-lowlatency-hwe-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-106.116~20.04.1"}]}]

Ubuntu:20.04:LTS linux-nvidia-tegra-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1027.27~20.04.1"}]}]

Ubuntu:20.04:LTS linux-oracle-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1059.65~20.04.1"}]}]

Ubuntu:20.04:LTS linux-riscv-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1057.61~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-azure-fde-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1114.123~20.04.1"}]}]

Ubuntu:22.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-106.116"}]}]

Ubuntu:22.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1061.67"}]}]

Ubuntu:22.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1063.72"}]}]

Ubuntu:22.04:LTS linux-azure-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-1022.23~22.04.1"}]}]

Ubuntu:22.04:LTS linux-azure-fde

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1063.72.1"}]}]

Ubuntu:22.04:LTS linux-azure-fde-6.8

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:22.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1059.67"}]}]

Ubuntu:22.04:LTS linux-gcp-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-1022.24~22.04.1"}]}]

Ubuntu:22.04:LTS linux-gke

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1058.63"}]}]

Ubuntu:22.04:LTS linux-gkeop

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1044.51"}]}]

Ubuntu:22.04:LTS linux-hwe-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-41.41~22.04.2"}]}]

Ubuntu:22.04:LTS linux-ibm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1054.57"}]}]

Ubuntu:22.04:LTS linux-intel-iotg

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1057.63"}]}]

Ubuntu:22.04:LTS linux-kvm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1058.63"}]}]

Ubuntu:22.04:LTS linux-lowlatency

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-106.116"}]}]

Ubuntu:22.04:LTS linux-lowlatency-hwe-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-41.41.1~22.04.1"}]}]

Ubuntu:22.04:LTS linux-nvidia

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1054.55"}]}]

Ubuntu:22.04:LTS linux-nvidia-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-1021.22"}]}]

Ubuntu:22.04:LTS linux-nvidia-tegra

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1026.26"}]}]

Ubuntu:22.04:LTS linux-nvidia-tegra-igx

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1015.15"}]}]

Ubuntu:22.04:LTS linux-oem-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-1024.25"}]}]

Ubuntu:22.04:LTS linux-oracle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1059.65"}]}]

Ubuntu:22.04:LTS linux-oracle-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-1024.24~22.04.1"}]}]

Ubuntu:22.04:LTS linux-raspi

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1054.57"}]}]

Ubuntu:22.04:LTS linux-riscv-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-40.40.1~22.04.1"}]}]

Ubuntu:22.04:LTS linux-starfive-6.5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.0-1015.16~22.04.1"}]}]

Ubuntu:22.04:LTS linux-xilinx-zynqmp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1030.34"}]}]

Ubuntu:Nvidia-BlueField:22.04:LTS linux-bluefield

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1043.45"}]}]

Ubuntu:Pro:FIPS-updates:22.04:LTS linux-aws-fips

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1061.67+fips1"}]}]

Ubuntu:Pro:FIPS-updates:22.04:LTS linux-azure-fips

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1063.72+fips1"}]}]

Ubuntu:Pro:FIPS-updates:22.04:LTS linux-fips

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-106.116+fips1"}]}]

Ubuntu:Pro:FIPS-updates:22.04:LTS linux-gcp-fips

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1059.67+fips1"}]}]

Ubuntu:Pro:Realtime:22.04:LTS linux-intel-iot-realtime

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1054.56"}]}]

Ubuntu:Pro:Realtime:22.04:LTS linux-realtime

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1062.70"}]}]

Ubuntu:24.04:LTS linux-azure-fde

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:Realtime:24.04:LTS linux-raspi-realtime

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-2001.1"}]}]

Ubuntu:26.04 linux-nvidia

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Nvidia-BlueField:24.04:LTS linux-bluefield

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Références

advisory ubuntu.com
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advisory ubuntu.com
report ubuntu.com
report git.kernel.org
report git.kernel.org
report git.kernel.org
report git.kernel.org
report git.kernel.org
report git.kernel.org
report cve.org