ext4: avoid cycles in directory h-tree (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.29 % · centile 22 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Modified
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Description
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid cycles in directory h-tree A maliciously corrupted filesystem can contain cycles in the h-tree stored inside a directory. That can easily lead to the kernel corrupting tree nodes that were already verified under its hands while doing a node split and consequently accessing unallocated memory. Fix the problem by verifying traversed block numbers are unique.
Références
- https://git.kernel.org/stable/c/24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3
- https://git.kernel.org/stable/c/b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0
- https://git.kernel.org/stable/c/e157c8f87e8fac112d6c955e69a60cdb9bc80a60
- https://git.kernel.org/stable/c/ff4cafa51762da3824881a9000ca421d4b78b138
- https://git.kernel.org/stable/c/3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc
- https://git.kernel.org/stable/c/d5a16a6df2c16eaf4de04948553ef0089dee463f
- https://git.kernel.org/stable/c/6084240bfc44bf265ab6ae7d96980469b05be0f1
- https://git.kernel.org/stable/c/3ba733f879c2a88910744647e41edeefbc0d92b2
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2022-54885
- GCVE · GCVE-0-2022-49343
Avis du CERT-FR
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0336 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0252 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 4.14.283cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.247cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.198cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.121cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.46cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.17.14cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.18 < 5.18.3
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3 ; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 < b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0 ; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 < e157c8f87e8fac112d6c955e69a60cdb9bc80a60 ; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 < ff4cafa51762da3824881a9000ca421d4b78b138 ; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc ; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 < d5a16a6df2c16eaf4de04948553ef0089dee463f |
| Linux · Linux | affected 2.6.19 ; unaffected 0 < 2.6.19 ; unaffected 4.14.283 ≤ 4.14.* ; unaffected 4.19.247 ≤ 4.19.* ; unaffected 5.4.198 ≤ 5.4.* ; unaffected 5.10.121 ≤ 5.10.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |