Heimdall Security Logo

CVE-2024-56700

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : 6.13, <=6.1.*, <=6.12.*, <=6.11.*, <2e63c908de357048180516b84740ed62dac0b269, <80a3b2ee01eecf22dfa06968b3cde92c691dea10, 2.6.39, 0, 6.1.120, 5.10.231, <372dc9509122e5d45d4c12978e31c3c7d00aaca4, 5.15.174, 6.12.2, 6.6.64, <3c818ad07e964bca3d27adac1e1f50e1e3c9180e, <d7408a052aa1b4f6fb6f1c7a8877b84017a07ac9, <=5.10.*, <=6.6.*, <ed228b74d8a500380150965d5becabf9a1e33141, <378ce4e08ca2b1ac7bbf1d57b68643ca4226c5f8, <=5.4.*, e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6, 6.11.11, <=4.19.*, <d16109c9fdc1b8cea4fe63b42e06e926c3f68990, <=*, <=5.15.*, 5.4.287, <ca59f9956d4519ab18ab2270be47c6b8c6ced091, <2.6.39, 4.19.325

Description

In the Linux kernel, the following vulnerability has been resolved: media: wl128x: Fix atomicity violation in fmc_send_cmd() Atomicity violation occurs when the fmc_send_cmd() function is executed simultaneously with the modification of the fmdev->resp_skb value. Consider a scenario where, after passing the validity check within the function, a non-null fmdev->resp_skb variable is assigned a null value. This results in an invalid fmdev->resp_skb variable passing the validity check. As seen in the later part of the function, skb = fmdev->resp_skb; when the invalid fmdev->resp_skb passes the check, a null pointer dereference error may occur at line 478, evt_hdr = (void *)skb->data; To address this issue, it is recommended to include the validity check of fmdev->resp_skb within the locked section of the function. This modification ensures that the value of fmdev->resp_skb does not change during the validation process, thereby maintaining its validity. This possible bug is found by an experimental static analysis tool developed by our team. This tool analyzes the locking APIs to extract function pairs that can be concurrently executed, and then analyzes the instructions in the paired functions to identify possible concurrency bugs including data races and atomicity violations.

Gravité et risque d'exploitation

CVE-2024-56700 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 0.22 %, ce qui la place devant 11.5 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 6.13, <=6.1.*, <=6.12.*, <=6.11.*, <2e63c908de357048180516b84740ed62dac0b269, <80a3b2ee01eecf22dfa06968b3cde92c691dea10, 2.6.39, 0, 6.1.120, 5.10.231, <372dc9509122e5d45d4c12978e31c3c7d00aaca4, 5.15.174, 6.12.2, 6.6.64, <3c818ad07e964bca3d27adac1e1f50e1e3c9180e, <d7408a052aa1b4f6fb6f1c7a8877b84017a07ac9, <=5.10.*, <=6.6.*, <ed228b74d8a500380150965d5becabf9a1e33141, <378ce4e08ca2b1ac7bbf1d57b68643ca4226c5f8, <=5.4.*, e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6, 6.11.11, <=4.19.*, <d16109c9fdc1b8cea4fe63b42e06e926c3f68990, <=*, <=5.15.*, 5.4.287, <ca59f9956d4519ab18ab2270be47c6b8c6ced091, <2.6.39, 4.19.325) 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