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CVE-2021-44732

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/20/2021

Last Modified11/3/2025

Sourcenvd

Honeypot Sightings0

Affected Products

arm:mbed_tlsdebian:debian_linux

Weaknesses (CWE)

CWE-415

References

https://bugs.gentoo.org/829660(cve@mitre.org)

https://github.com/ARMmbed/mbedtls/releases(cve@mitre.org)

https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12(cve@mitre.org)

https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0(cve@mitre.org)

https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html(cve@mitre.org)

https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12(cve@mitre.org)

https://bugs.gentoo.org/829660(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ARMmbed/mbedtls/releases(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.12(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html(af854a3a-2127-422b-91ae-364da2661108)

https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-12(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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