CVE-2024-1543: wolfssl (CVSS 4.1)

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

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CVSS v3.1 Score

4.1

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-208 CWE-208

CWE-203 CWE-203

Affected Products

Vendor	Product	Versions
wolfssl	wolfssl	< 5.6.6

References

Other References

https://github.com/wolfSSL/wolfssl/blob/master/ChangeLog.md#wolfssl-release-566-dec-19-2023

Frequently Asked Questions

What is CVE-2024-1543? +

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 It has a CVSS v3.1 base score of 4.1 (MEDIUM).

How severe is CVE-2024-1543? +

CVE-2024-1543 has a CVSS v3.1 score of 4.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-1543? +

CVE-2024-1543 affects products from wolfssl, specifically: wolfssl. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-1543? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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