# CVE-2024-45157: mbedtls: An issue was discovered in Mbed TLS before 2.28.9 and 3.x before 3.6.1, in which the user-selected algorithm is not used

CVE-2024-45157 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2024-45157, released September 5, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-45157
- Priority: Routine
- CVSS: 5.1 (medium)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 5, 2024

## Description

An issue was discovered in Mbed TLS before 2.28.9 and 3.x before 3.6.1, in which the user-selected algorithm is not used. Unlike previously documented, enabling MBEDTLS_PSA_HMAC_DRBG_MD_TYPE does not cause the PSA subsystem to use HMAC_DRBG: it uses HMAC_DRBG only when MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG and MBEDTLS_CTR_DRBG_C are disabled.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mbedtls Debian 13.5 (trixie) | 3.6.2-1 | [DEBIAN-CVE-2024-45157](https://patchblox.com/security/data/fix/linux/debian-cve-2024-45157.md) | Sep 5, 2024 |
| Linux | mbedtls Debian 14 | 3.6.2-1 | [DEBIAN-CVE-2024-45157](https://patchblox.com/security/data/fix/linux/debian-cve-2024-45157.md) | Sep 5, 2024 |
| Linux | mbedtls-2 opensuse-leap 16.0 | 2.28.10-bp160.1.1 | [OPENSUSE-SU-2026:21145-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21145-1.md) | Jun 22, 2026 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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