CVE-2021-45451

2021-12-2107:15:06

Debian Security Bug Tracker

security-tracker.debian.org

mbed tls

psa_aead_generate_nonce

bypass vulnerability

policy bypass

oracle-based decryption

untrusted application

memory locations

cve-2021-45451

unix

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

CVSS3

7.5

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

EPSS

0.003

Percentile

66.6%

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.

OSVersionArchitecturePackageVersionFilename
Debian12allmbedtls< 2.28.3-1mbedtls_2.28.3-1_all.deb
Debian11allmbedtls< 2.16.9-0.1mbedtls_2.16.9-0.1_all.deb
Debian999allmbedtls< 2.28.8-1mbedtls_2.28.8-1_all.deb
Debian13allmbedtls< 2.28.8-1mbedtls_2.28.8-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	mbedtls	< 2.28.3-1	mbedtls_2.28.3-1_all.deb
Debian	11	all	mbedtls	< 2.16.9-0.1	mbedtls_2.16.9-0.1_all.deb
Debian	999	all	mbedtls	< 2.28.8-1	mbedtls_2.28.8-1_all.deb
Debian	13	all	mbedtls	< 2.28.8-1	mbedtls_2.28.8-1_all.deb