CVE-2021-34981

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the CMTP module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11977.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector : AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitability : 0.8 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-21-1223/
https://www.zerodayinitiative.com/advisories/ZDI-21-1223/

Configurations

No configuration.

History

No history.

Information

Published : 2024-05-07 23:15

Updated : 2024-11-21 06:11

NVD link : CVE-2021-34981

Mitre link : CVE-2021-34981

CVE.ORG link : CVE-2021-34981

JSON object : View

Products Affected

No product.

CWE

CWE-415

Double Free

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