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CVE-2022-49389

MEDIUMCVSS 5.5/10EPSS 0.28%

Last modified

CVE-2022-49389 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: usb: usbip: fix a refcount leak in stub_probe() usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails after that, usb_put_dev() needs to be called to release the reference. Fix this by moving usb_put_dev() to sdev_free error path handling. Find this by code review.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: usbip: fix a refcount leak in stub_probe() usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails after that, usb_put_dev() needs to be called to release the reference. Fix this by moving usb_put_dev() to sdev_free error path handling. Find this by code review.

Metrics

CVSS 3.1
5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.28%

19.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 3.16.58, < 3.17
LinuxLinux Kernel>= 3.18.110, < 4.9.318
LinuxLinux Kernel>= 4.10, < 4.14.283
LinuxLinux Kernel>= 4.15, < 4.19.247
LinuxLinux Kernel>= 4.20, < 5.4.198
LinuxLinux Kernel>= 5.5, < 5.10.122
LinuxLinux Kernel>= 5.11, < 5.15.47
LinuxLinux Kernel>= 5.16, < 5.17.15
LinuxLinux Kernel>= 5.18, < 5.18.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-49389?
In the Linux kernel, the following vulnerability has been resolved: usb: usbip: fix a refcount leak in stub_probe() usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails after that, usb_put_dev() needs to be called to release the reference. Fix this by moving usb_put_dev() to sdev_free error path handling. Find this by code review.
How severe is CVE-2022-49389?
CVE-2022-49389 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2022-49389?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-49389?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST