lz4: fix LZ4_decompress_safe_partial read out of bound (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.28 % · centile 21 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Analyzed
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Description
In the Linux kernel, the following vulnerability has been resolved: lz4: fix LZ4_decompress_safe_partial read out of bound When partialDecoding, it is EOF if we've either filled the output buffer or can't proceed with reading an offset for following match. In some extreme corner cases when compressed data is suitably corrupted, UAF will occur. As reported by KASAN [1], LZ4_decompress_safe_partial may lead to read out of bound problem during decoding. lz4 upstream has fixed it [2] and this issue has been disscussed here [3] before. current decompression routine was ported from lz4 v1.8.3, bumping lib/lz4 to v1.9.+ is certainly a huge work to be done later, so, we'd better fix it first. [1] https://lore.kernel.org/all/000000000000830d1205cf7f0477@google.com/ [2] https://github.com/lz4/lz4/commit/c5d6f8a8be3927c0bec91bcc58667a6cfad244ad# [3] https://lore.kernel.org/all/CC666AE8-4CA4-4951-B6FB-A2EFDE3AC03B@fb.com/
Faiblesses (CWE)
- CWE-416 — Utilisation après libération
Références
- https://git.kernel.org/stable/c/73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3
- https://git.kernel.org/stable/c/6adc01a7aa37445dafe8846faa0610a86029b253
- https://git.kernel.org/stable/c/9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927
- https://git.kernel.org/stable/c/e64dbe97c05c769525cbca099ddbd22485630235
- https://git.kernel.org/stable/c/467d5e200ab4486b744fe1776154a43d1aa22d4b
- https://git.kernel.org/stable/c/eafc0a02391b7b36617b36c97c4b5d6832cf5e24
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2022-55126
- GCVE · GCVE-0-2022-49078
Avis du CERT-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:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.189cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.111cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.34cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.20cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.17 < 5.17.3
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 2209fda323e2fd2a2d0885595fd5097717f8d2aa < 73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3 ; affected 2209fda323e2fd2a2d0885595fd5097717f8d2aa < 6adc01a7aa37445dafe8846faa0610a86029b253 ; affected 2209fda323e2fd2a2d0885595fd5097717f8d2aa < 9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927 ; affected 2209fda323e2fd2a2d0885595fd5097717f8d2aa < e64dbe97c05c769525cbca099ddbd22485630235 ; affected 2209fda323e2fd2a2d0885595fd5097717f8d2aa < 467d5e200ab4486b744fe1776154a43d1aa22d4b ; affected 2209fda323e2fd2a2d0885595fd5097717f8d2aa < eafc0a02391b7b36617b36c97c4b5d6832cf5e24 |
| Linux · Linux | affected 4.20 ; unaffected 0 < 4.20 ; unaffected 5.4.189 ≤ 5.4.* ; unaffected 5.10.111 ≤ 5.10.* ; unaffected 5.15.34 ≤ 5.15.* ; unaffected 5.16.20 ≤ 5.16.* |
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 |