CVE-2024-54137: liboqs Information Disclosure — Fix

Description

liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. A correctness error has been identified in the reference implementation of the HQC key encapsulation mechanism. Due to an indexing error, part of the secret key is incorrectly treated as non-secret data. This results in an incorrect shared secret value being returned when the decapsulation function is called with a malformed ciphertext. This vulnerability is fixed in 0.12.0.

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CVSS v3.1 Score

7.4

HIGH

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

Weakness Type (CWE)

CWE-200 CWE-200

Affected Products

Vendor	Product	Versions
openquantumsafe	liboqs	< 0.12.0

References

Advisories & Patches

https://github.com/open-quantum-safe/liboqs/commit/cce1bfde4e52c524b087b9687020d283fbde0f24 https://github.com/open-quantum-safe/liboqs/security/advisories/GHSA-gpf4-vrrw-r8v7

Frequently Asked Questions

What is CVE-2024-54137? +

liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. A correctness error has been identified in the reference implementation of the HQC key encapsulation mechanism. Due to an indexing error, part of the secret key is incorrectly treated as non-secret data. This results in an incorrect shared secret value being returned when the decapsulation function is called with a malformed ciphertext. This vulnerability is fixed in 0.12.0. It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2024-54137? +

CVE-2024-54137 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-54137? +

CVE-2024-54137 affects products from openquantumsafe, specifically: liboqs. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-54137? +

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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