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CVE-2024-43883

Linux Kernel use-after-free

9.8 CRITICALEPSS 0.65%
  1. Published23 Aug 2024

Description

In the Linux kernel, the following vulnerability has been resolved: usb: vhci-hcd: Do not drop references before new references are gained At a few places the driver carries stale pointers to references that can still be used. Make sure that does not happen. This strictly speaking closes ZDI-CAN-22273, though there may be similar races in the driver.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux Kernel≥ 4.20 < 5.4.282 · ≥ 5.11 < 5.15.165 · ≥ 5.16 < 6.1.105 · ≥ 5.5 < 5.10.224

Remediation

Fixed in
Linux Kernel≥ 5.4.282

References

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Frequently asked

Is CVE-2024-43883 being actively exploited?

CVE-2024-43883 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.65%.

How severe is CVE-2024-43883?

CVE-2024-43883 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.65% probability of exploitation.

Which products are affected by CVE-2024-43883?

Affected products include Linux Kernel.

How do I fix CVE-2024-43883?

Upgrade affected software to a fixed version, for example Linux Kernel 5.4.282 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.