What’s Vulnerable › Vulnerabilities
CVE-2024-23170
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-01-31 · updated 2026-06-17
- Weakness: CWE-203
Description
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.
Affected products
- mbedtls: from 2.0.0 before 2.28.7 — fixed in 2.28.7
- TrustedFirmware Mbed TLS: from 3.0.0 before 3.5.2 — fixed in 3.5.2
How to fix
Upgrade to a fixed version: mbedtls 2.28.7; TrustedFirmware Mbed TLS 3.5.2. Check the vendor advisory for mitigations.
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GP5UU7Z6LJNBLBT4SC5WWS2HDNMTFZH5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IIBPEYSVRK4IFLBSYJAWKH33YBNH5HR2/
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-01-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GP5UU7Z6LJNBLBT4SC5WWS2HDNMTFZH5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IIBPEYSVRK4IFLBSYJAWKH33YBNH5HR2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GP5UU7Z6LJNBLBT4SC5WWS2HDNMTFZH5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IIBPEYSVRK4IFLBSYJAWKH33YBNH5HR2/
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-01-1/
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