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CVE-2024-38602

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : 5.10.112, <5.11, <=6.1.*, 5ea00fc60676c0eebfa8560ec461209d638bca9d, 6.10, <ae467750a3765dd1092eb29f58247950a2f9b60c, ef0a2a0565727a48f2e36a2c461f8b1e3a61922d, 0, e2b558fe507a1ed4c43db2b0057fc6e41f20a14c, <5.17, <1ea02699c7557eeb35ccff2bd822de1b3e09d868, <4.20, 5.15.35, <=6.6.*, 6.8.12, <=6.9.*, <38eb01edfdaa1562fa00429be2e33f45383b1b3a, 4.14.277, 6.6.33, 4.19.240, <5.5, 9af0fd5c4453a44c692be0cbb3724859b75d739b, <5.16, 5.4.190, <=6.8.*, 418993bbaafb0cd48f904ba68eeda052d624c821, <b505e0319852b08a3a716b64620168eab21f4ced, 6.1.93, <=*, 6.9.3, <4.15, <81d8240b0a243b3ddd8fa8aa172f1acc2f7cc8f3, 5.17, d01ffb9eee4af165d83b08dd73ebdf9fe94a519b

Description

In the Linux kernel, the following vulnerability has been resolved: ax25: Fix reference count leak issues of ax25_dev The ax25_addr_ax25dev() and ax25_dev_device_down() exist a reference count leak issue of the object "ax25_dev". Memory leak issue in ax25_addr_ax25dev(): The reference count of the object "ax25_dev" can be increased multiple times in ax25_addr_ax25dev(). This will cause a memory leak. Memory leak issues in ax25_dev_device_down(): The reference count of ax25_dev is set to 1 in ax25_dev_device_up() and then increase the reference count when ax25_dev is added to ax25_dev_list. As a result, the reference count of ax25_dev is 2. But when the device is shutting down. The ax25_dev_device_down() drops the reference count once or twice depending on if we goto unlock_put or not, which will cause memory leak. As for the issue of ax25_addr_ax25dev(), it is impossible for one pointer to be on a list twice. So add a break in ax25_addr_ax25dev(). As for the issue of ax25_dev_device_down(), increase the reference count of ax25_dev once in ax25_dev_device_up() and decrease the reference count of ax25_dev after it is removed from the ax25_dev_list.

Gravité et risque d'exploitation

CVE-2024-38602 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 10.9 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 5.10.112, <5.11, <=6.1.*, 5ea00fc60676c0eebfa8560ec461209d638bca9d, 6.10, <ae467750a3765dd1092eb29f58247950a2f9b60c, ef0a2a0565727a48f2e36a2c461f8b1e3a61922d, 0, e2b558fe507a1ed4c43db2b0057fc6e41f20a14c, <5.17, <1ea02699c7557eeb35ccff2bd822de1b3e09d868, <4.20, 5.15.35, <=6.6.*, 6.8.12, <=6.9.*, <38eb01edfdaa1562fa00429be2e33f45383b1b3a, 4.14.277, 6.6.33, 4.19.240, <5.5, 9af0fd5c4453a44c692be0cbb3724859b75d739b, <5.16, 5.4.190, <=6.8.*, 418993bbaafb0cd48f904ba68eeda052d624c821, <b505e0319852b08a3a716b64620168eab21f4ced, 6.1.93, <=*, 6.9.3, <4.15, <81d8240b0a243b3ddd8fa8aa172f1acc2f7cc8f3, 5.17, d01ffb9eee4af165d83b08dd73ebdf9fe94a519b) 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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