CVE-2020-12140: Buffer Overflow
Published Dec 7, 2021
·Updated
A buffer overflow in os/net/mac/ble/ble-l2cap.c in the BLE stack in Contiki-NG 4.4 and earlier allows an attacker to execute arbitrary code via malicious L2CAP frames.
Affected Software
1 affected component
Contiki-NG Contiki-NG<=4.4
Remediation
Patch Available
Event History
Dec 7, 2021
CVE Published
via MITRE·06:23 PM
Data Sourced
via MITRE·06:23 PM
Description
Frequently Asked Questions
1
What is CVE-2020-12140?
CVE-2020-12140 is a buffer overflow vulnerability in the BLE stack in Contiki-NG 4.4 and earlier versions.
2
How does CVE-2020-12140 allow an attacker to execute arbitrary code?
CVE-2020-12140 allows an attacker to execute arbitrary code by sending malicious L2CAP frames.
3
What is the severity of CVE-2020-12140?
CVE-2020-12140 has a severity of 8.8 (high).
4
What software versions are affected by CVE-2020-12140?
Contiki-NG versions up to and including 4.4 are affected by CVE-2020-12140.
5
Is there any fix available for CVE-2020-12140?
Yes, a fix has been implemented in Contiki-NG. Refer to the provided GitHub link for more information.