CVE-2024-27001

Description

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix incomplete endpoint checking While vmk80xx does have endpoint checking implemented, some things can fall through the cracks. Depending on the hardware model, URBs can have either bulk or interrupt type, and current version of vmk80xx_find_usb_endpoints() function does not take that fully into account. While this warning does not seem to be too harmful, at the very least it will crash systems with 'panic_on_warn' set on them. Fix the issue found by Syzkaller [1] by somewhat simplifying the endpoint checking process with usb_find_common_endpoints() and ensuring that only expected endpoint types are present. This patch has not been tested on real hardware. [1] Syzkaller report: usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 0 PID: 781 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... Call Trace: <TASK> usb_start_wait_urb+0x113/0x520 drivers/usb/core/message.c:59 vmk80xx_reset_device drivers/comedi/drivers/vmk80xx.c:227 [inline] vmk80xx_auto_attach+0xa1c/0x1a40 drivers/comedi/drivers/vmk80xx.c:818 comedi_auto_config+0x238/0x380 drivers/comedi/drivers.c:1067 usb_probe_interface+0x5cd/0xb00 drivers/usb/core/driver.c:399 ... Similar issue also found by Syzkaller:

Gravité et risque d'exploitation

CVE-2024-27001 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 0.28 %, ce qui la place devant 19.5 % des CVE référencées.

Que faire ?

• Vérifiez si Linux (versions 6.9, <=6.1.*, <a3b8ae7e9297dd453f2977b011c5bc75eb20e71b, 0, 6.1.88, <f15370e315976198f338b41611f37ce82af6cf54, <3.9, <ac882d6b21bffecb57bcc4486701239eef5aa67b, 5.10.216, <=5.10.*, <59f33af9796160f851641d960bd93937f282c696, 6.6.29, <=6.6.*, 49253d542cc0f5f771dc254d248162a2a666649d, <d1718530e3f640b7d5f0050e725216eab57a85d8, 5.4.275, <=5.4.*, <3a63ae0348d990e137cca04eced5b08379969ea9, <=4.19.*, <=6.8.*, <b0b268eeb087e324ef3ea71f8e6cabd07630517f, 5.15.157, 6.8.8, <=*, <=5.15.*, <6ec3514a7d35ad9cfab600187612c29f669069d2, 4.19.313, 3.9) 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

• https://git.kernel.org/stable/c/3a63ae0348d990e137cca04eced5b08379969ea9
• https://git.kernel.org/stable/c/a3b8ae7e9297dd453f2977b011c5bc75eb20e71b
• https://git.kernel.org/stable/c/f15370e315976198f338b41611f37ce82af6cf54
• https://git.kernel.org/stable/c/b0b268eeb087e324ef3ea71f8e6cabd07630517f
• https://git.kernel.org/stable/c/ac882d6b21bffecb57bcc4486701239eef5aa67b
• https://git.kernel.org/stable/c/59f33af9796160f851641d960bd93937f282c696
• https://git.kernel.org/stable/c/6ec3514a7d35ad9cfab600187612c29f669069d2
• https://git.kernel.org/stable/c/d1718530e3f640b7d5f0050e725216eab57a85d8