#VU86233 Covert Timing Channel in mbed TLS


Published: 2024-02-07

Vulnerability identifier: #VU86233

Vulnerability risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-23170

CWE-ID: CWE-385

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
mbed TLS
Universal components / Libraries / Libraries used by multiple products

Vendor: ARM

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to a timing side channel in RSA private operations. A remote attacker can perform Marvin attack and gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

mbed TLS: 3.5.0 - 3.5.1, 3.0.0, 2.28.0 - 2.28.6, 2.16.0 - 2.16.12, 2.27.0, 2.7.0 - 2.7.19, 2.26.0, 2.25.0, 2.24.0, 2.23.0, 2.22.0, 2.21.0, 2.20.0, 2.19.0 - 2.19.1, 2.18.0 - 2.18.1, 2.17.0, 2.15.0 - 2.15.1, 2.14.0 - 2.14.1, 2.13.0 - 2.13.1, 2.11.0, 2.10.0, 2.9.0, 2.6.0 - 2.6.1, 2.5.0 - 2.5.1, 2.4.0 - 2.4.2, 2.3.0, 2.2.0 - 2.2.1, 2.1.0 - 2.1.18, 2.0.0, 2.12.0, 2.8.0


External links
http://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-01-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability