Buffer overflow in Blosc C-Blosc2
CVE-2024-3203
A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.013 (70.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Blosc C-Blosc2
- C-Blosc2 — versions 2.13.0, 2.13.1, 2.13.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (Exploit, VDB Entry, third-party-advisory)
- drive.google.com/drive/folders/1T1k3UeS09m65LjVXExUuZfedNQPWQWCo (Product, exploit)
- github.com/Blosc/c-blosc2/releases/tag/v2.14.3 (Release Notes, patch)
Frequently asked questions
- What is CVE-2024-3203?
- CVE-2024-3203 is a high-severity vulnerability in Blosc C-Blosc2, classified under Heap-based Buffer Overflow. CVSS score: 7.3/10. Published 2024-04-02.
- How severe is CVE-2024-3203?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2024-3203 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.