Improper Input Validation in BlueZ Affects Linux Kernel Security
CVE-2020-12351

8.8HIGH

Key Information:

Vendor

Linux
Status
Bluez
Vendor
CVE Published:
23 November 2020

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-12351?

An improper input validation flaw in BlueZ could enable an unauthenticated user with adjacent access to potentially escalate privileges. This vulnerability poses significant security risks as it could be exploited to gain unauthorized access or control over the affected systems. Users of BlueZ versions prior to 5.4 should review their security posture and apply necessary updates to mitigate potential threats.

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Deploy the Patch

Affected Version(s)

BlueZ See references

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

Linux-Heap-Based-Type-Confusion-in-L2CAP
Created by naren-jayram

References

https://www.intel.com/content/www/us/en/security-center/a...
x_refsource_MISC
http://packetstormsecurity.com/files/162131/Linux-Kernel-...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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