[UNKNOWN] kernel:
En bref
- Source
- NVD
- EPSS
- EPSS 0.52 % · centile 44 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
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Description
A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.
Faiblesses (CWE)
- CWE-665 — Initialisation incorrecte
Références
- http://www.securityfocus.com/bid/104905
- https://access.redhat.com/errata/RHSA-2018:2393
- https://access.redhat.com/errata/RHSA-2018:2390
- https://access.redhat.com/errata/RHSA-2018:2391
- https://access.redhat.com/errata/RHSA-2018:2392
- https://access.redhat.com/errata/RHSA-2018:2394
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/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 | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | HIGH 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · secalert@redhat.com (Secondary) |
| CVSS 2.0 | HIGH 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2018-2958
- GCVE · GCVE-0-2018-10901
Avis du CERT-FR
- CERTFR-2019-AVI-014 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
- CERTFR-2018-AVI-386 — Multiples vulnérabilités dans le noyau Linux de RedHat · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 2.6.36cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server_aus:6.4:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| [UNKNOWN] · kernel: | affected n/a |
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 |