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CVE-2024-49982

Vulnérabilité élevée dans Linux (Linux)

CVSS 8.8 · Élevée
EPSS 0.4%
Linux•Linux•Versions : 6.9, <=6.1.*, 6.12, <12f7b89dd72b25da4eeaa22097877963cad6418e, <=6.11.*, <bc2cbf7525ac288e07d465f5a1d8cb8fb9599254, <acc5103a0a8c200a52af7d732c36a8477436a3d3, <5.4.285, 5.4.285, 0, 4.19.311, <f63461af2c1a86af4217910e47a5c46e3372e645, 6.1.83, 6.7.11, 5.15.153, <6.8, <6.6.55, 6.8.2, <=5.10.*, <=6.6.*, 7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4, 6.6.55, 5.4.273, 6.11.3, a16fbb80064634b254520a46395e36b87ca4731e, <=5.4.*, <=4.19.*, <6d6e54fc71ad1ab0a87047fd9c211e75d86084a3, faf0b4c5e00bb680e8e43ac936df24d3f48c8e65, 1a54aa506b3b2f31496731039e49778f54eee881, ad80c34944d7175fa1f5c7a55066020002921a99, <07b418d50ccbbca7e5d87a3a0d41d436cefebf79, 74ca3ef68d2f449bc848c0a814cefc487bf755fa, <4.19.323, 4.19.323, 079cba4f4e307c69878226fdf5228c20aa1c969c, 6.6.23, 6.1.113, <6.1.113, 5.10.214, <8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58, <5.10.227, <=*, <a786265aecf39015418e4f930cc1c14603a01490, <=5.15.*, f98364e926626c678fb4b9004b75cacf92ff0662, <89d9a69ae0c667e4d9d028028e2dcc837bae626f, eb48680b0255a9e8a9bdc93d6a55b11c31262e62, <5.15.168, <6.9, 5.10.227, 5.15.168, 6.10.14, <=6.10.*

Description

In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in more places For fixing CVE-2023-6270, f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") makes tx() calling dev_put() instead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs into use-after-free. Then Nicolai Stange found more places in aoe have potential use-after-free problem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe() and aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push packet to tx queue. So they should also use dev_hold() to increase the refcnt of skb->dev. On the other hand, moving dev_put() to tx() causes that the refcnt of skb->dev be reduced to a negative value, because corresponding dev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(), probe(), and aoecmd_cfg_rsp(). This patch fixed this issue.

Gravité et risque d'exploitation

CVE-2024-49982 obtient un score CVSS de 8.8/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.38 %, ce qui la place devant 30.6 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 6.9, <=6.1.*, 6.12, <12f7b89dd72b25da4eeaa22097877963cad6418e, <=6.11.*, <bc2cbf7525ac288e07d465f5a1d8cb8fb9599254, <acc5103a0a8c200a52af7d732c36a8477436a3d3, <5.4.285, 5.4.285, 0, 4.19.311, <f63461af2c1a86af4217910e47a5c46e3372e645, 6.1.83, 6.7.11, 5.15.153, <6.8, <6.6.55, 6.8.2, <=5.10.*, <=6.6.*, 7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4, 6.6.55, 5.4.273, 6.11.3, a16fbb80064634b254520a46395e36b87ca4731e, <=5.4.*, <=4.19.*, <6d6e54fc71ad1ab0a87047fd9c211e75d86084a3, faf0b4c5e00bb680e8e43ac936df24d3f48c8e65, 1a54aa506b3b2f31496731039e49778f54eee881, ad80c34944d7175fa1f5c7a55066020002921a99, <07b418d50ccbbca7e5d87a3a0d41d436cefebf79, 74ca3ef68d2f449bc848c0a814cefc487bf755fa, <4.19.323, 4.19.323, 079cba4f4e307c69878226fdf5228c20aa1c969c, 6.6.23, 6.1.113, <6.1.113, 5.10.214, <8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58, <5.10.227, <=*, <a786265aecf39015418e4f930cc1c14603a01490, <=5.15.*, f98364e926626c678fb4b9004b75cacf92ff0662, <89d9a69ae0c667e4d9d028028e2dcc837bae626f, eb48680b0255a9e8a9bdc93d6a55b11c31262e62, <5.15.168, <6.9, 5.10.227, 5.15.168, 6.10.14, <=6.10.*) 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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