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CVE-2024-47712

Vulnérabilité élevée dans Linux (Linux)

CVSS 8.3 · Élevée
EPSS 0.4%
Linux•Linux•Versions : 6.9, <=6.1.*, 6.12, <79510414a7626317f13cc9073244ab7a8deb3192, <=6.11.*, <5.4.285, 6.10.13, 5.4.285, 0, e556006de4ea93abe2b46cba202a2556c544b8b2, 6.1.83, 6.7.11, 5.15.153, b4bbf38c350acb6500cbe667b1e2e68f896e4b38, <5a24cedc243ace5ed7c1016f52a7bfc8f5b07815, <6.8, 6.8.2, <=5.10.*, <84398204c5df5aaf89453056cf0647cda9664d2b, <6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8, <=6.6.*, 5.4.273, 205c50306acf58a335eb19fa84e40140f4fe814f, 745003b5917b610352f52fe0d11ef658d6471ec2, <=5.4.*, <557418e1704605a81c9e26732449f71b1d40ba1e, 6.6.54, 6.1.113, <6.6.54, <2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5, 6.6.23, <bf090f4fe935294361eabd9dc5a949fdd77d3d1b, <b040b71d99ee5e17bb7a743dc01cbfcae8908ce1, <6.1.113, 5.10.214, <5.10.227, <=*, <=5.15.*, dd50d3ead6e3707bb0a5df7cc832730c93ace3a7, 5800ec78775c0cd646f71eb9bf8402fb794807de, 5.10.227, <5.15.168, <6.9, 5.15.168, d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2, 6.11.2, <=6.10.*, 4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param In the `wilc_parse_join_bss_param` function, the TSF field of the `ies` structure is accessed after the RCU read-side critical section is unlocked. According to RCU usage rules, this is illegal. Reusing this pointer can lead to unpredictable behavior, including accessing memory that has been updated or causing use-after-free issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the TSF value is now stored in a local variable `ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is then assigned using this local variable, ensuring that the TSF value is safely accessed.

Gravité et risque d'exploitation

CVE-2024-47712 obtient un score CVSS de 8.3/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.36 %, ce qui la place devant 28.8 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 6.9, <=6.1.*, 6.12, <79510414a7626317f13cc9073244ab7a8deb3192, <=6.11.*, <5.4.285, 6.10.13, 5.4.285, 0, e556006de4ea93abe2b46cba202a2556c544b8b2, 6.1.83, 6.7.11, 5.15.153, b4bbf38c350acb6500cbe667b1e2e68f896e4b38, <5a24cedc243ace5ed7c1016f52a7bfc8f5b07815, <6.8, 6.8.2, <=5.10.*, <84398204c5df5aaf89453056cf0647cda9664d2b, <6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8, <=6.6.*, 5.4.273, 205c50306acf58a335eb19fa84e40140f4fe814f, 745003b5917b610352f52fe0d11ef658d6471ec2, <=5.4.*, <557418e1704605a81c9e26732449f71b1d40ba1e, 6.6.54, 6.1.113, <6.6.54, <2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5, 6.6.23, <bf090f4fe935294361eabd9dc5a949fdd77d3d1b, <b040b71d99ee5e17bb7a743dc01cbfcae8908ce1, <6.1.113, 5.10.214, <5.10.227, <=*, <=5.15.*, dd50d3ead6e3707bb0a5df7cc832730c93ace3a7, 5800ec78775c0cd646f71eb9bf8402fb794807de, 5.10.227, <5.15.168, <6.9, 5.15.168, d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2, 6.11.2, <=6.10.*, 4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce) 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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