Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2021-43666

Published: Mar 24, 2022 | Modified: Dec 02, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-43666
CWEhttps://cwe.mitre.org/data/definitions/.html

A Denial of Service vulnerability exists in mbed TLS 3.0.0 and earlier in the mbedtls_pkcs12_derivation function when an input passwords length is 0.

Affected Software

NameVendorStart VersionEnd Version
Mbed_tlsArm*3.0.0 (including)
MbedtlsUbuntubionic*
MbedtlsUbuntuesm-apps/bionic*
MbedtlsUbuntuesm-apps/focal*
MbedtlsUbuntuesm-apps/xenial*
MbedtlsUbuntufocal*
MbedtlsUbuntuimpish*
MbedtlsUbuntukinetic*
MbedtlsUbuntulunar*
MbedtlsUbuntumantic*
MbedtlsUbuntuoracular*
MbedtlsUbuntutrusty*
MbedtlsUbuntuupstream*
MbedtlsUbuntuxenial*

References

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