open-quantum-safe oqs-provider up to 0.6.0 length buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in open-quantum-safe oqs-provider up to 0.6.0. This issue affects some unknown processing. Such manipulation of the argument length leads to buffer overflow. This vulnerability is traded as CVE-2024-37305. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in open-quantum-safe oqs-provider up to 0.6.0 and classified as critical. Affected by this issue is some unknown functionality. The manipulation of the argument length with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is availability. CVE summarizes:

oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. All users are advised to upgrade. There are no workarounds for this issue.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2024-37305 since 06/05/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 326389 (Linux Distros Unpatched Vulnerability : CVE-2024-37305), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.6.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (326389). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• open-quantum-safe

Name

• oqs-provider

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6.0

Website

• Product: https://github.com/open-quantum-safe/oqs-provider/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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