powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas() (Linux Linux)

CVE-2024-46774
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.27 % · centile 18 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas() Smatch warns: arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential spectre issue 'args.args' [r] (local cap) The 'nargs' and 'nret' locals come directly from a user-supplied buffer and are used as indexes into a small stack-based array and as inputs to copy_to_user() after they are subject to bounds checks. Use array_index_nospec() after the bounds checks to clamp these values for speculative execution.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d2834ff1d9641a8695a09ea79cd901c7b6d4d05f ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b137af795399d8b657bad1646c18561530f35ed1 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1f1feff02e9da0dd0cdb195c428c42b5f9b6c771 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 68d8156480940b79227d58865ec5d2947b9384a8 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0974d03eb479384466d828d65637814bee6b26d7
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 5.10.237 ≤ 5.10.* ; unaffected 5.15.181 ≤ 5.15.* ; unaffected 6.1.135 ≤ 6.1.* ; unaffected 6.6.88 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD