Double Free in Arm Mbed_tls

CVE-2021-44732

Mbed TLS before 3.0.1 has a double free in certain out-of-memory conditions, as demonstrated by an mbedtls_ssl_set_session() failure.

Vulnerability class: Double Free

EPSS: 0.010 (76.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-44732?
CVE-2021-44732 is a critical-severity vulnerability in Arm Mbed_tls, classified under Double Free. CVSS score: 9.8/10. Published 2021-12-20.
How severe is CVE-2021-44732?
Critical severity. CVSS v3 base score is 9.8 out of 10.