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CVE-2026-98461

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : <3976bbcd43b9b94c53ac9b0fd28888011588f4cc, <=6.1.*, <=6.12.*, 2.6.12, <b0a6cf99afd57a39598b1beca0e86ef5004980de, 6.18.55, 0, <ebdd49cec380731844ed9df4092a29a014623df4, <f894f6292d5122cd62d30600736b4a0ae79f7770, <2.6.12, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 6.12.112, 5.10.271, 6.6.158, <=5.10.*, <=6.6.*, <39e99d85071bca0feeec3164a9437ca1bff297fc, 6.1.189, <=6.18.*, 5.15.222, <=7.2.*, 7.2.9, <2501a3b7b7144d1d11939b355a48ed01f83d0c62, <dca25c204f71be0556a15177dbe037237ac43e5e, <1a92763c2ba721bf113cd83f913fe8c511b4a4dc, <=*, <=5.15.*, 7.3

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sock: validate event length before filtering is_filtered_packet() reads the event code from skb->data[0] without first checking that the skb is nonempty. When an opcode filter is configured, it also reads the command opcode at offsets 3 or 4 without checking that a Command Complete or Command Status event is long enough. hci_send_to_sock() invokes the filter before hci_event_packet() validates the event header. A malformed event supplied by a controller or a vhci device can therefore cause an out-of-bounds read. Keep the unmasked event code for the opcode checks. The masked value is needed for the 64-bit event bitmap, but using it to identify command events aliases event codes above 0x3f. In particular, Synchronous Train Complete (0x4f) was treated as Command Status (0x0f) even though its payload has no opcode. Reject actual command events that are too short for the field being inspected. A truncated command event cannot match a configured opcode.

Gravité et risque d'exploitation

CVE-2026-98461 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 0.21 %, ce qui la place devant 10.6 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions <3976bbcd43b9b94c53ac9b0fd28888011588f4cc, <=6.1.*, <=6.12.*, 2.6.12, <b0a6cf99afd57a39598b1beca0e86ef5004980de, 6.18.55, 0, <ebdd49cec380731844ed9df4092a29a014623df4, <f894f6292d5122cd62d30600736b4a0ae79f7770, <2.6.12, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, 6.12.112, 5.10.271, 6.6.158, <=5.10.*, <=6.6.*, <39e99d85071bca0feeec3164a9437ca1bff297fc, 6.1.189, <=6.18.*, 5.15.222, <=7.2.*, 7.2.9, <2501a3b7b7144d1d11939b355a48ed01f83d0c62, <dca25c204f71be0556a15177dbe037237ac43e5e, <1a92763c2ba721bf113cd83f913fe8c511b4a4dc, <=*, <=5.15.*, 7.3) 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

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