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CVE-2023-54214

Bluetooth: L2CAP: Fix potential user-after-free

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in b2fde8cb2a25125111f2144604e0e7c0ebcc4bba; From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49; From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in 60aaccf16d1e099c16bebfb96428ae762cb528f7; From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in b8ed41cc04fb74005aa51d17865ca3d022760335; From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in 31a288a4df7f6a28e65da22a4ab2add4a963738e; From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in 64e28ecf44e46de9f01915a4146706a21c3469d2; From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in 994e3e18908f5c4a12d07b44018e6aa85f071048; From a6a5568c03c4805d4d250f6bd9d468eeeb4ea059 · fixed in df5703348813235874d851934e957c3723d71644

  • Linux Linux

    3.5

  • KernelLinux

    From 3.5.0 · fixed in 4.14.308; From 4.15.0 · fixed in 4.19.276; From 4.20.0 · fixed in 5.4.235; From 5.5.0 · fixed in 5.10.173; From 5.11.0 · fixed in 5.15.99; From 5.16.0 · fixed in 6.1.16; From 6.2.0 · fixed in 6.2.3

References 8

git.kernel.org