// For flags

CVE-2022-3564

Linux Kernel Bluetooth l2cap_core.c l2cap_reassemble_sdu use after free

Severity Score

7.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability classified as critical was found in Linux Kernel. Affected by this vulnerability is the function l2cap_reassemble_sdu of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211087.

Se ha encontrado una vulnerabilidad clasificada como crítica en el Kernel de Linux. Esta vulnerabilidad afecta a la función l2cap_reassemble_sdu del archivo net/bluetooth/l2cap_core.c del componente Bluetooth. La manipulación conlleva a un uso de memoria previamente liberada. Es recomendado aplicar un parche para corregir este problema. El identificador asociado a esta vulnerabilidad es VDB-211087

A use-after-free flaw was found in the Linux kernel’s L2CAP bluetooth functionality in how a user triggers a race condition by two malicious flows in the L2CAP bluetooth packets. This flaw allows a local or bluetooth connection user to crash the system or potentially escalate privileges.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-10-17 CVE Reserved
  • 2022-10-17 CVE Published
  • 2024-05-09 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Netapp
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H300s Firmware
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--
Affected
in Netapp
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H300s
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--
Safe
Netapp
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H500s Firmware
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--
Affected
in Netapp
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H500s
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--
Safe
Netapp
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H700s Firmware
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--
Affected
in Netapp
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H700s
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--
Safe
Netapp
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H410s Firmware
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--
Affected
in Netapp
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H410s
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--
Safe
Linux
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Linux Kernel
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>= 3.6 < 4.9.333
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-
Affected
Linux
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Linux Kernel
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>= 4.10 < 4.14.299
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-
Affected
Linux
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Linux Kernel
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>= 4.15 < 4.19.265
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-
Affected
Linux
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Linux Kernel
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>= 4.20 < 5.4.224
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-
Affected
Linux
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Linux Kernel
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>= 5.5.0 < 5.10.154
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-
Affected
Linux
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Linux Kernel
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>= 5.11 < 5.15.78
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-
Affected
Linux
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Linux Kernel
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>= 5.16 < 6.0.8
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-
Affected
Debian
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Debian Linux
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10.0
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-
Affected