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CVE-2023-54214

HIGHCVSS 8.8/10EPSS 0.18%

Last modified

CVE-2023-54214 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
0.18%

8.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < b2fde8cb2a25125111f2144604e0e7c0ebcc4bba; >= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49; >= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < 60aaccf16d1e099c16bebfb96428ae762cb528f7; >= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < b8ed41cc04fb74005aa51d17865ca3d022760335; >= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < 31a288a4df7f6a28e65da22a4ab2add4a963738e; >= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < 64e28ecf44e46de9f01915a4146706a21c3469d2; >= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < 994e3e18908f5c4a12d07b44018e6aa85f071048; >= a6a5568c03c4805d4d250f6bd9d468eeeb4ea059, < df5703348813235874d851934e957c3723d71644
LinuxLinux3.5

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2023-54214?
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.
How severe is CVE-2023-54214?
CVE-2023-54214 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2023-54214?
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.

How Strix Helps

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Source: NVD / NIST