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Vulnérabilité Kernel Linux - Copy Fail (CVE-2026-31431)

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    bcrestani
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    Vulnérabilité Kernel Linux - Copy Fail (CVE-2026-31431)

    Contexte

    Une vulnérabilité de sécurité a été identifiée dans le noyau Linux, référencée CVE-2026-31431 (CVSS 7.8) et communément appelée Copy Fail.
    Elle affecte le module cryptographique algif_aead (interface utilisateur de l'API crypto du noyau).

    Cette vulnérabilité permet une élévation de privilèges locale uniquement.
    Un accès préalable (shell) est requis pour l'exploiter.

    Quelles conséquences pour GoFAST ?

    GoFAST utilise le système d'exploitation AlmaLinux, le module algif_aead est directement compilé dans le noyau (builtin).
    Dès le 1er mai 2026, AlmaLinux a publié un correctif dans ses repositories.
    Les mises à jour GoFAST intégrant ce correctif sont en cours de déploiement selon nos procédures standard.

    Références

    • https://copy.fail/
    • https://xint.io/blog/copy-fail-linux-distributions
    • https://nvd.nist.gov/vuln/detail/CVE-2026-31431
    • https://almalinux.org/blog/2026-05-01-cve-2026-31431-copy-fail/
    • https://errata.almalinux.org/9/ALSA-2026-A002.html
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