# CVE-2024-1543: wolfssl: The side-channel protected T-Table implementation in wolfSSL up to version 5.6.5 protects against a side-channel atta...

CVE-2024-1543 is fixed in wolfssl on 1 platform by DEBIAN-CVE-2024-1543 (version 5.6.6-1.2), released August 29, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-1543
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 29, 2024

## Description

The side-channel protected T-Table implementation in wolfSSL up to version 5.6.5 protects against a side-channel attacker with cache-line resolution. In a controlled environment such as Intel SGX, an attacker can gain a per instruction sub-cache-line resolution allowing them to break the cache-line-level protection. For details on the attack refer to:  https://doi.org/10.46586/tches.v2024.i1.457-500

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | wolfssl Debian 13.5 (trixie) | 5.6.6-1.2 | [DEBIAN-CVE-2024-1543](https://patchblox.com/security/data/fix/linux/debian-cve-2024-1543.md) | Aug 29, 2024 |

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Data as of 2026-11-09T01:18:40Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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