CVE-2023-2008
Kernel: udmabuf: improper validation of array index leading to local privilege escalation
En bref
- Sévérité
- HIGH 8.2
- EPSS
- EPSS 1.01 % · centile 63 (2026-10-27)
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
Description
A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler. This issue occurs due to the lack of proper validation of user-supplied data, which can result in memory access past the end of an array. This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | redhat |
| 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 8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | NVD · secalert@redhat.com (Primary) |
| 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 · nvd@nist.gov (Secondary) |
| 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) |
Faiblesses (CWE)
Références européennes
- ENISA EUVD · EUVD-2023-33538
- GCVE · GCVE-0-2023-2008
Avis du CERT-FR
- CERTFR-2023-AVI-0449 — Multiples vulnérabilités dans le noyau Linux de RedHat · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0395 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0382 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 5.19cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.202cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.127cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.51cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.18.8cpe:2.3:o:linux:linux_kernel:5.19:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · kernel | affected 4.20 < 5.4.202 ; affected 5.5 < 5.10.127 ; affected 5.11 < 5.15.51 ; affected 5.16 < 5.18.8 ; unaffected 5.19 |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:5.14.0-162.6.1.el9_1 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:5.14.0-162.6.1.rt21.168.el9_1 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:5.14.0-162.6.1.el9_1 < * |
| Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support | unaffected 0:5.14.0-70.58.1.el9_0 < * |
| Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support | unaffected 0:5.14.0-70.58.1.rt21.129.el9_0 < * |
| Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support | |
| Red Hat · Red Hat Enterprise Linux 6 | |
| Red Hat · Red Hat Enterprise Linux 7 | |
| Red Hat · Red Hat Enterprise Linux 7 | |
| Red Hat · Red Hat Enterprise Linux 8 | |
| Red Hat · Red Hat Enterprise Linux 8 |
Références
- https://access.redhat.com/errata/RHSA-2022:7933
- https://access.redhat.com/errata/RHSA-2022:8267
- https://access.redhat.com/errata/RHSA-2023:3465
- https://access.redhat.com/errata/RHSA-2023:3470
- https://access.redhat.com/errata/RHSA-2023:3490
- https://access.redhat.com/security/cve/CVE-2023-2008
- https://bugzilla.redhat.com/show_bug.cgi?id=2186862
- https://www.zerodayinitiative.com/advisories/ZDI-23-441/
- https://github.com/torvalds/linux/commit/05b252cccb2e5c3f56119d25de684b4f810ba4
- https://security.netapp.com/advisory/ntap-20230517-0007/
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 |