x86/tdx: Fix data leak in mmio_read() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.20 % · centile 10 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix data leak in mmio_read() The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmio_read() unintentionally exposes the value of an initialized variable (val) on the stack to the VMM. This variable is only needed as an output value. It did not need to be passed to the VMM in the first place. Do not send the original value of *val to the VMM. [ dhansen: clarify what 'val' is used for. ]
Références
- https://git.kernel.org/stable/c/26c6af49d26ffc377e392e30d4086db19eed0ef7
- https://git.kernel.org/stable/c/ef00818c50cf55a3a56bd9a9fae867c92dfb84e7
- https://git.kernel.org/stable/c/b55ce742afcb8e8189d82f2f1e635ba1b5a461fa
- https://git.kernel.org/stable/c/b6fb565a2d15277896583d471b21bc14a0c99661
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | LOW 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2024-42055
- GCVE · GCVE-0-2024-46794
Avis du CERT-FR
- CERTFR-2025-AVI-0022 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0002 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1080 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0870 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0837 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≤ 5.19cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1 < 6.1.110cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6 < 6.6.51cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.10 < 6.10.10cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 31d58c4e557d46fa7f8557714250fb6f89c941ae < 26c6af49d26ffc377e392e30d4086db19eed0ef7 ; affected 31d58c4e557d46fa7f8557714250fb6f89c941ae < ef00818c50cf55a3a56bd9a9fae867c92dfb84e7 ; affected 31d58c4e557d46fa7f8557714250fb6f89c941ae < b55ce742afcb8e8189d82f2f1e635ba1b5a461fa ; affected 31d58c4e557d46fa7f8557714250fb6f89c941ae < b6fb565a2d15277896583d471b21bc14a0c99661 |
| Linux · Linux | affected 5.19 ; unaffected 0 < 5.19 ; unaffected 6.1.110 ≤ 6.1.* ; unaffected 6.6.51 ≤ 6.6.* ; unaffected 6.10.10 ≤ 6.10.* ; unaffected 6.11 ≤ * |
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 |