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CVE-2021-45451

Good to know:

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Date: December 21, 2021

In Mbed TLS before 3.1.0, psa_aead_generate_nonce allows policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.

Language: C

Severity Score

Related Resources (5)

https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/
https://nvd.nist.gov/vuln/detail/CVE-2021-45451
https://www.mend.io/vulnerability-database/CVE-2021-45451

Severity Score

Weakness Type (CWE)

Use of a Broken or Risky Cryptographic Algorithm

CWE-327

Top Fix

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Upgrade Version

Upgrade to version v3.1.0,mbedtls-3.1.0

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CVSS v3.1

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

CVSS v2

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

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