TI-2024-03004 Aliases CVE-2024-3204 GHSA-c52r-8hmj-x4qg

c-blosc2 ndlz4x4.c ndlz4_decompress heap-based overflow

MEDIUM 51CWE-122Published 2024-04-02 · Updated 2024-08-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

A vulnerability has been found in c-blosc2 up to 2.13.2 and classified as critical. Affected by this vulnerability is the function ndlz4_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz4x4.c. The manipulation leads to heap-based buffer overflow. The attack can be launched 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. The associated identifier of this vulnerability is VDB-259051.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01275 70th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	c-blosc2	2.13.0; 2.13.1; 2.13.2	—	No fix listed	CNA

c-blosc2 Vendor— Affected 2.13.0; 2.13.1; 2.13.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:blosc:c-blosc2::::::::	up to 2.13.2	Vulnerable	Blosc

cpe:2.3:a:blosc:c-blosc2:*:*:*:*:*:*:*:* Versions up to 2.13.2 Vulnerable ·Blosc

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-3204
2026-10-03 Alias added: GHSA-c52r-8hmj-x4qg

References

Exploit 1

https://drive.google.com/drive/folders/1T1k3UeS09m65LjVXExUuZfedNQPWQWCo?usp=sharing

Patch 1

https://github.com/Blosc/c-blosc2/releases/tag/v2.14.3

TI-2024-03003 c-blosc2 ndlz8x8.c ndlz8_decompress heap-based overflow CVSS 3.1CRITICAL 9.8
TI-2023-18819 C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference via the… CVSS 3.1HIGH 7.5
TI-2020-17648 blosc2.c in Blosc C-Blosc2 through 2.0.0.beta.5 has a heap-based buffer overflow when… CVSS 3.1HIGH 7.8
TI-2023-18822 C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference via the… CVSS 3.1HIGH 7.5
TI-2023-18821 C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference via the… CVSS 3.1HIGH 7.5
TI-2023-18820 C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences