CVE-2024-23170

2024-01-3108:15:42

Google

osv.dev

mbed tls

rsa

timing side channel

plaintext recovery

local attacker

decryption

everlasting robot

marvin attack

hubert kario

software

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.5

Confidence

High

EPSS

0.001

Percentile

19.8%

JSON

An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations. This side channel could be sufficient for a local attacker to recover the plaintext. It requires the attacker to send a large number of messages for decryption, as described in “Everlasting ROBOT: the Marvin Attack” by Hubert Kario.