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UBUNTU-CVE-2025-37896

Vulnérabilité dans linux-hwe-edge (UBUNTU-CVE-2025-37896)

Résumé

Vulnérabilité dans linux-hwe-edge (UBUNTU-CVE-2025-37896). Risque d'opérations non autorisées ou de divulgation. Exploitable via write_cache. Atténuation : mise à jour vers 6.14.0-1009.9~24.04.1 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: spi: spi-mem: Add fix to avoid divide error For some SPI flash memory operations, dummy bytes are not mandatory. For example, in Winbond SPINAND flash memory devices, the write_cache and update_cache operation variants have zero dummy bytes. Calculating the duration for SPI memory operations with zero dummy bytes causes a divide error when ncycles is calculated in the spi_mem_calc_op_duration(). Add changes to skip the 'ncylcles' calculation for zero dummy bytes. Following divide error is fixed by this change: Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI ... ? do_trap+0xdb/0x100 ? do_error_trap+0x75/0xb0 ? spi_mem_calc_op_duration+0x56/0xb0 ? exc_divide_error+0x3b/0x70 ? spi_mem_calc_op_duration+0x56/0xb0 ? asm_exc_divide_error+0x1b/0x20 ? spi_mem_calc_op_duration+0x56/0xb0 ? spinand_select_op_variant+0xee/0x190 [spinand] spinand_match_and_init+0x13e/0x1a0 [spinand] spinand_manufacturer_match+0x6e/0xa0 [spinand] spinand_probe+0x357/0x7f0 [spinand] ? kernfs_activate+0x87/0xd0 spi_mem_probe+0x7a/0xb0 spi_probe+0x7d/0x130

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-2025-37896 a été découverte dans linux-hwe-edge.
Des attaquants peuvent cibler un point d'entrée spécifique comme write_cache à distance pour détourner le produit.
Risque d'opérations non autorisées ou de divulgation.
Action : mettez à jour linux-hwe-edge vers 6.14.0-1009.9~24.04.1 ou supérieur.
En cas de doute, contactez votre service informatique ou cherchez « linux-hwe-edge UBUNTU-CVE-2025-37896 » sur le site de l'éditeur.

UBUNTU-CVE-2025-37896 (linux-hwe-edge)
Vecteur d'attaque : local / sans interaction utilisateur
Surface d'attaque : write_cache / update_cache / ncycles
Correctif : 6.14.0-1009.9~24.04.1 — 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-hwe-edge. Les attaquants atteignent le code vulnérable via write_cache.

📍 Périmètre concerné

Consultez l'avis de l'éditeur pour les versions affectées de linux-hwe-edge. Surface d'attaque : write_cache / update_cache / ncycles.

🔥 Gravité

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

🔧 Comment corriger

Mettre à jour vers 6.14.0-1009.9~24.04.1.

🛡️ 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-hwe-edge' . | 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-hwe-edge 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-hwe-edge to 6.14.0-1009.9~24.04.1
```
ステージング環境で 6.14.0-1009.9~24.04.1 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:16.04:LTS linux-hwe-edge

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

Ubuntu:18.04:LTS linux-aws-5.0

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

Ubuntu:18.04:LTS linux-aws-5.3

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

Ubuntu:18.04:LTS linux-azure

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

Ubuntu:18.04:LTS linux-azure-5.3

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

Ubuntu:18.04:LTS linux-azure-edge

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

Ubuntu:18.04:LTS linux-gcp

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

Ubuntu:18.04:LTS linux-gcp-5.3

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

Ubuntu:18.04:LTS linux-gke-4.15

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

Ubuntu:18.04:LTS linux-gke-5.4

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

Ubuntu:18.04:LTS linux-gkeop-5.4

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

Ubuntu:18.04:LTS linux-hwe

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

Ubuntu:18.04:LTS linux-hwe-edge

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

Ubuntu:18.04:LTS linux-oem

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

Ubuntu:18.04:LTS linux-oracle-5.0

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

Ubuntu:18.04:LTS linux-oracle-5.3

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

Ubuntu:20.04:LTS linux-aws-5.11

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

Ubuntu:20.04:LTS linux-aws-5.13

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

Ubuntu:20.04:LTS linux-aws-5.8

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

Ubuntu:20.04:LTS linux-azure-5.11

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

Ubuntu:20.04:LTS linux-azure-5.13

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

Ubuntu:20.04:LTS linux-azure-5.8

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

Ubuntu:20.04:LTS linux-azure-fde

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

Ubuntu:20.04:LTS linux-gcp-5.11

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

Ubuntu:20.04:LTS linux-gcp-5.13

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

Ubuntu:20.04:LTS linux-gcp-5.8

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

Ubuntu:20.04:LTS linux-gke

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

Ubuntu:20.04:LTS linux-gke-5.15

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

Ubuntu:20.04:LTS linux-gkeop

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

Ubuntu:20.04:LTS linux-gkeop-5.15

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

Ubuntu:20.04:LTS linux-hwe-5.11

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

Ubuntu:20.04:LTS linux-hwe-5.13

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

Ubuntu:20.04:LTS linux-hwe-5.8

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

Ubuntu:20.04:LTS linux-intel-5.13

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

Ubuntu:20.04:LTS linux-oem-5.10

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

Ubuntu:20.04:LTS linux-oem-5.13

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

Ubuntu:20.04:LTS linux-oem-5.14

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

Ubuntu:20.04:LTS linux-oem-5.6

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

Ubuntu:20.04:LTS linux-oracle-5.11

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

Ubuntu:20.04:LTS linux-oracle-5.13

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

Ubuntu:20.04:LTS linux-oracle-5.8

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

Ubuntu:20.04:LTS linux-raspi2

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

Ubuntu:20.04:LTS linux-riscv

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

Ubuntu:20.04:LTS linux-riscv-5.11

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

Ubuntu:20.04:LTS linux-riscv-5.8

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

Ubuntu:22.04:LTS linux-allwinner-5.19

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

Ubuntu:22.04:LTS linux-aws-5.19

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

Ubuntu:22.04:LTS linux-aws-6.2

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

Ubuntu:22.04:LTS linux-aws-6.5

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

Ubuntu:22.04:LTS linux-azure-5.19

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

Ubuntu:22.04:LTS linux-azure-6.2

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

Ubuntu:22.04:LTS linux-azure-6.5

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

Ubuntu:22.04:LTS linux-azure-fde-5.19

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

Ubuntu:22.04:LTS linux-azure-fde-6.2

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

Ubuntu:22.04:LTS linux-gcp-5.19

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

Ubuntu:22.04:LTS linux-gcp-6.2

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

Ubuntu:22.04:LTS linux-gcp-6.5

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

Ubuntu:22.04:LTS linux-hwe-5.19

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

Ubuntu:22.04:LTS linux-hwe-6.2

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

Ubuntu:22.04:LTS linux-hwe-6.5

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

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

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

Ubuntu:22.04:LTS linux-lowlatency-hwe-5.19

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

Ubuntu:22.04:LTS linux-lowlatency-hwe-6.2

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

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

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

Ubuntu:22.04:LTS linux-nvidia-6.2

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

Ubuntu:22.04:LTS linux-nvidia-6.5

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

Ubuntu:22.04:LTS linux-oem-5.17

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

Ubuntu:22.04:LTS linux-oem-6.0

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

Ubuntu:22.04:LTS linux-oem-6.1

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

Ubuntu:22.04:LTS linux-oem-6.5

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

Ubuntu:22.04:LTS linux-oracle-6.5

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

Ubuntu:22.04:LTS linux-realtime

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

Ubuntu:22.04:LTS linux-riscv

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

Ubuntu:22.04:LTS linux-riscv-5.19

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

Ubuntu:22.04:LTS linux-riscv-6.5

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

Ubuntu:22.04:LTS linux-starfive-5.19

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

Ubuntu:22.04:LTS linux-starfive-6.2

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

Ubuntu:22.04:LTS linux-starfive-6.5

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

Ubuntu:24.04:LTS linux-aws-6.14

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.14.0-1009.9~24.04.1"}]}]

Ubuntu:24.04:LTS linux-azure-fde-6.17

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

Ubuntu:24.04:LTS linux-gcp-6.14

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.14.0-1011.11~24.04.1"}]}]

Ubuntu:24.04:LTS linux-oem-6.14

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.14.0-1007.7"}]}]

Ubuntu:24.04:LTS linux-oracle-6.14

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.14.0-1009.9~24.04.1"}]}]

Ubuntu:24.04:LTS linux-raspi-realtime

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

Ubuntu:24.04:LTS linux-realtime

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

Ubuntu:24.04:LTS linux-riscv-6.14

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.14.0-24.24.1~24.04.1"}]}]

Ubuntu:Pro:Realtime:24.04:LTS linux-realtime-6.14

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.14.0-1010.10~24.04.1"}]}]

Ubuntu:25.10 linux-azure-fde

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

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