# CVE-2024-23170: mbedtls: An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2

CVE-2024-23170 is fixed in mbedtls on 1 platform, first by DEBIAN-CVE-2024-23170, released January 31, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-23170
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0031
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 31, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mbedtls Debian 13.5 (trixie) | 2.28.7-1 | [DEBIAN-CVE-2024-23170](https://patchblox.com/security/data/fix/linux/debian-cve-2024-23170.md) | Jan 31, 2024 |
| Linux | mbedtls Debian 14 | 2.28.7-1 | [DEBIAN-CVE-2024-23170](https://patchblox.com/security/data/fix/linux/debian-cve-2024-23170.md) | Jan 31, 2024 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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