CVE-2024-35996

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : 30da4180fd768973189dc364648f9c436e57b01d, 6.6.28, 9c09773917fbb77dff85b433e1e89123fc5fb530, <5.15.158, <af6d6a923b40bf6471e44067ac61cc5814b48e7f, 2978ee7c973ce81b6e51100ba1e5ae001af624b9, <fd8547ebc187037cc69441a15c1441aeaab80f49, f337a6a21e2fd67eadea471e93d05dd37baaa9be, 6.8.7, <36b32816fbab267611f073223f1b0b816ec5920f, <fe42754b94a42d08cf9501790afc25c4f6a5f631, <38f17d1fbb5bfb56ca1419e2d06376d57a9396f9, 6.1.87, <6.8.9, c4a9babdd5d5a41a74269a2e1aa1647b1b4c45bb, 5.15.156, <6.6.30, <6.1.90, 70688450dddaf91e12fd4fc625da3297025932c9, <8292f4f8dd1b005d0688d726261004f816ef730a

Description

In the Linux kernel, the following vulnerability has been resolved: cpu: Re-enable CPU mitigations by default for !X86 architectures Rename x86's to CPU_MITIGATIONS, define it in generic code, and force it on for all architectures exception x86. A recent commit to turn mitigations off by default if SPECULATION_MITIGATIONS=n kinda sorta missed that "cpu_mitigations" is completely generic, whereas SPECULATION_MITIGATIONS is x86-specific. Rename x86's SPECULATIVE_MITIGATIONS instead of keeping both and have it select CPU_MITIGATIONS, as having two configs for the same thing is unnecessary and confusing. This will also allow x86 to use the knob to manage mitigations that aren't strictly related to speculative execution. Use another Kconfig to communicate to common code that CPU_MITIGATIONS is already defined instead of having x86's menu depend on the common CPU_MITIGATIONS. This allows keeping a single point of contact for all of x86's mitigations, and it's not clear that other architectures *want* to allow disabling mitigations at compile-time.

Gravité et risque d'exploitation

CVE-2024-35996 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.24 %, ce qui la place devant 14.6 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 30da4180fd768973189dc364648f9c436e57b01d, 6.6.28, 9c09773917fbb77dff85b433e1e89123fc5fb530, <5.15.158, <af6d6a923b40bf6471e44067ac61cc5814b48e7f, 2978ee7c973ce81b6e51100ba1e5ae001af624b9, <fd8547ebc187037cc69441a15c1441aeaab80f49, f337a6a21e2fd67eadea471e93d05dd37baaa9be, 6.8.7, <36b32816fbab267611f073223f1b0b816ec5920f, <fe42754b94a42d08cf9501790afc25c4f6a5f631, <38f17d1fbb5bfb56ca1419e2d06376d57a9396f9, 6.1.87, <6.8.9, c4a9babdd5d5a41a74269a2e1aa1647b1b4c45bb, 5.15.156, <6.6.30, <6.1.90, 70688450dddaf91e12fd4fc625da3297025932c9, <8292f4f8dd1b005d0688d726261004f816ef730a) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références