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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

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

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

55.3%

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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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

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

55.3%

JSON
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