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CVE-2021-44732

Good to know:

Date: December 20, 2021

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.

Language: C

Severity Score

9.8

Related Resources (11)

Url: https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0

Url: https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-44732

Url: https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0

Url: https://security-tracker.debian.org/tracker/CVE-2021-44732

Url: https://security.alpinelinux.org/vuln/CVE-2021-44732

Url: https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12

Url: https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12

Url: https://bugs.gentoo.org/829660

Url: https://github.com/ARMmbed/mbedtls/releases

Url: https://www.mend.io/vulnerability-database/CVE-2021-44732

Severity Score

9.8

Weakness Type (CWE)

Double Free

CWE-415

Top Fix

Upgrade Version

Upgrade to version mbedtls-2.16.12,mbedtls-2.28.0,mbedtls-3.1.0,v2.16.12,v2.28.0,v3.1.0

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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