CVE-2024-54137 liboqs has a correctness error in HQC decapsulation
An indexing error in liboqs HQC decapsulation incorrectly treats secret key data as public, potentially leaking secret information during malformed ciphertext processing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-54137?
CVE-2024-54137 is a high-severity vulnerability in open-quantum-safe liboqs, published on 6 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2024-54137?
It affects 1 product.
Linux distribution packages (1)
liboqs openSUSE:Tumbleweed | All versions | 0.12.0-1.1 |
Products include Openquantumsafe Liboqs.
How do I fix CVE-2024-54137?
Upgrade to a fixed version.
Is CVE-2024-54137 being exploited?
There is no known exploitation of CVE-2024-54137 in the wild and no public exploit code.
Other vulnerabilities in open-quantum-safe liboqs
- CVE-2024-31510 Other in n/a
- CVE-2025-52473 liboqs secret-dependent branching in HQC reference implementation when compiled with Clang 17-20
- CVE-2024-36405 Information disclosure in liboqs
- CVE-2026-44518 liboqs: XMSS Buffer Overread Bug
- CVE-2026-46344 liboqs: Heap-buffer-overflow in XMSS verification path via OID-controlled parameter mismatch (xmss_commons.c:194)
Sources
Also known as GHSA-gpf4-vrrw-r8v7, openSUSE-SU-2024:14580-1.