Double Free Vulnerability in Mbed TLS Affects Multiple Versions
CVE-2021-44732

9.8CRITICAL

Key Information:

Vendor

Arm
Status
Mbed Tls
Vendor
CVE Published:
20 December 2021

What is CVE-2021-44732?

A double free vulnerability exists in Mbed TLS versions before 3.0.1. This issue may be triggered under certain out-of-memory conditions, particularly exemplified by failures during SSL session management. If exploited, this vulnerability can lead to unexpected behavior or application crashes, thus potentially allowing unauthorized access or denial of service in applications relying on Mbed TLS. Users are advised to update to the latest versions to mitigate this risk.

References

https://github.com/ARMmbed/mbedtls/releases
https://tls.mbed.org/tech-updates/security-advisories/mbe...
https://bugs.gentoo.org/829660

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

.