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.
{
"sources": [
{
"modified": "2025-11-04T19:16:33.367Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2024-23170",
"id": "CVE-2024-23170",
"imported": "2025-11-20T23:04:02.691Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23170",
"published": "2024-01-31T08:15:42.220Z"
}
],
"license": "CC-BY-4.0"
}