# CVE-2024-3203: c-blosc2: A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2

CVE-2024-3203 is fixed in c-blosc2 on 1 platform, first by DEBIAN-CVE-2024-3203, released April 2, 2024. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2024-3203
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0136
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 2, 2024

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | c-blosc2 Debian 13.5 (trixie) | 2.13.1+ds-3 | [DEBIAN-CVE-2024-3203](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3203.md) | Apr 2, 2024 |
| Linux | c-blosc2 Debian 14 | 2.13.1+ds-3 | [DEBIAN-CVE-2024-3203](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3203.md) | Apr 2, 2024 |

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