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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2024-23170
HistoryJan 31, 2024 - 8:15 a.m.

CVE-2024-23170

2024-01-3108:15:42
Debian Security Bug Tracker
security-tracker.debian.org
21
cve-2024-23170
mbed tls
timing side channel
rsa
plaintext
local attacker
decryption
everlasting robot
marvin attack
hubert kario
unix

5.5 Medium

CVSS3

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

6.2 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

20.0%

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.

5.5 Medium

CVSS3

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

6.2 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

20.0%