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cve[email protected]CVE-2021-45451
HistoryDec 21, 2021 - 7:15 a.m.

CVE-2021-45451

2021-12-2107:15:06
CWE-327
[email protected]
web.nvd.nist.gov
42
2
cve-2021-45451
mbed tls
psa_aead_generate_nonce
policy bypass
oracle-based decryption
security vulnerability

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

57.9%

JSON

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.

Affected configurations

NVD
Node
armmbed_tlsRange<3.1.0
Node
fedoraprojectfedoraMatch36
OR
fedoraprojectfedoraMatch37
CPENameOperatorVersion
arm:mbed_tlsarm mbed tlslt3.1.0

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5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

57.9%

JSON
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