CVE-2021-44732

9.8 CRITICAL
Published: December 20, 2021 Modified: November 03, 2025
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://bugs.gentoo.org/829660
Source: cve@mitre.org
Issue Tracking Mailing List Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases
Source: cve@mitre.org
Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12
Source: cve@mitre.org
Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0
Source: cve@mitre.org
Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0
Source: cve@mitre.org
Release Notes
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
Source: cve@mitre.org
Mailing List Third Party Advisory
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12
Source: cve@mitre.org
Exploit Mitigation Third Party Advisory
https://bugs.gentoo.org/829660
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Mailing List Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Mitigation Third Party Advisory

15 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
0.9%
76th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-415

Affected Vendors

arm debian

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