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CVE-2021-3601

Date: July 29, 2022

A flaw was found in the way OpenSSL will accept a certificate with explicitly set Basic Constraints to CA:FALSE as a valid CA if it is present in the trusted bundle. This flaw allows an attacker with access to a private key, of which the corresponding certificate is in the trust bundle, to use this flaw for MITM to any connection from the victim machine.

Severity Score

Related Resources (5)

https://security-tracker.debian.org/tracker/CVE-2021-3601
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3601
https://access.redhat.com/security/cve/CVE-2021-3601
https://nvd.nist.gov/vuln/detail/CVE-2021-3601
https://www.mend.io/vulnerability-database/CVE-2021-3601

Severity Score

CVSS v3.1

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

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