Heap-Based Buffer Issues in Mbed TLS by Arm
CVE-2022-46393

9.8CRITICAL

Key Information:

Vendor

Arm
Status
Mbed Tls
Vendor
CVE Published:
15 December 2022

What is CVE-2022-46393?

A vulnerability in Mbed TLS prior to version 2.28.2 and 3.x prior to 3.3.0 allows for a potential heap-based buffer overflow and buffer over-read in DTLS. This occurs when the configuration option MBEDTLS_SSL_DTLS_CONNECTION_ID is active, and the parameters for connection ID length are improperly set, leading to potential exploitation in the application layer.

References

https://mbed-tls.readthedocs.io/en/latest/tech-updates/se...
https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0
https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.