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CVE-2022-3534

Vulnérabilité moyenne dans Kernel (Linux)

CVSS 5.5 · Moyenne
EPSS 1.0%
Linux•Kernel•Versions : 6.0.5, 5.15.25, 5.15.69, 5.15.13, 6.0.1, 5.15.8, 5.15.0, 5.15.72, 6.0.8, 5.15.30, 5.15.3, 5.15.9, 5.15.37, 5.15.64, 5.15.47, 5.15.49, 5.15.67, 5.15.85, 5.15.81, 5.15.42, 5.15.44, 5.15.61, 5.15.78, 5.15.6, 5.15.31, 5.15.7, 5.15.18, 5.15.65, 5.15.41, 6.1.2, 6.0.15, 5.15.68, 5.15.82, 6.2, 5.15.58, 6.1.0, 5.15.26, 5.15.71, 5.15.53, 5.15.59, 5.15.35, 5.15.17, 6.0.16, 6.0.14, 5.15.51, 5.15.60, 5.10.163, 5.15.77, 5.15.16, 5.15.4, 5.15.75, 5.15.86, 6.0.9, 6.0.2, 5.15.11, 5.15.28, 6.0.7, 5.15.40, 5.15.36, 5.15.45, 5.15.39, 6.0.12, 5.15.84, 5.10.162, 5.15.23, 5.15.66, 5.15.24, 6.0.13, 5.15.1, 6.0.4, 5.15.54, 5.15.74, 5.15.83, 6.0.6, 5.15.38, 5.15.52, 5.15.57, 5.15.63, 5.15.21, 5.15.79, 6.1.1, 5.15.33, 5.15.19, 5.15.70, 5.15.48, 5.15.46, 5.15.76, 5.15.34, 5.15.73, 5.15.27, 5.15.29, 5.15.2, 5.15.50, 6.0.11, 5.15.56, 5.15.43, 5.15.32, 5.15.62, 5.15.55, 5.15.5, 5.15.12, 5.15.20, 6.0.0, 5.15.15, 6.0.3, 5.15.10, 5.15.80, 5.15.22, 6.0.10, 5.15.14

Description

A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and 6.2 is sufficient to resolve this issue. The identifier of the patch is c61650b869e0b6fb0c0a28ed42d928eea969afc8/fbe08093fb2334549859829ef81d42570812597d/8c64a8e76eb85d422af5ec60ccbf26e3ead8c333/a733bf10198eb5bb927890940de8ab457491ed3b/93c660ca40b5d2f7c1b1626e955a8e9fa30e0749. You should upgrade the affected component.

Gravité et risque d'exploitation

CVE-2022-3534 obtient un score CVSS de 5.5/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.96 %, ce qui la place devant 61.0 % des CVE référencées.

Que faire ?

  • Vérifiez si Kernel (versions 6.0.5, 5.15.25, 5.15.69, 5.15.13, 6.0.1, 5.15.8, 5.15.0, 5.15.72, 6.0.8, 5.15.30, 5.15.3, 5.15.9, 5.15.37, 5.15.64, 5.15.47, 5.15.49, 5.15.67, 5.15.85, 5.15.81, 5.15.42, 5.15.44, 5.15.61, 5.15.78, 5.15.6, 5.15.31, 5.15.7, 5.15.18, 5.15.65, 5.15.41, 6.1.2, 6.0.15, 5.15.68, 5.15.82, 6.2, 5.15.58, 6.1.0, 5.15.26, 5.15.71, 5.15.53, 5.15.59, 5.15.35, 5.15.17, 6.0.16, 6.0.14, 5.15.51, 5.15.60, 5.10.163, 5.15.77, 5.15.16, 5.15.4, 5.15.75, 5.15.86, 6.0.9, 6.0.2, 5.15.11, 5.15.28, 6.0.7, 5.15.40, 5.15.36, 5.15.45, 5.15.39, 6.0.12, 5.15.84, 5.10.162, 5.15.23, 5.15.66, 5.15.24, 6.0.13, 5.15.1, 6.0.4, 5.15.54, 5.15.74, 5.15.83, 6.0.6, 5.15.38, 5.15.52, 5.15.57, 5.15.63, 5.15.21, 5.15.79, 6.1.1, 5.15.33, 5.15.19, 5.15.70, 5.15.48, 5.15.46, 5.15.76, 5.15.34, 5.15.73, 5.15.27, 5.15.29, 5.15.2, 5.15.50, 6.0.11, 5.15.56, 5.15.43, 5.15.32, 5.15.62, 5.15.55, 5.15.5, 5.15.12, 5.15.20, 6.0.0, 5.15.15, 6.0.3, 5.15.10, 5.15.80, 5.15.22, 6.0.10, 5.15.14) 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

Rechercher une autre CVE