PT-2023-25822 · C-Blosc2 · C-Blosc2

Rish9101 · Published 2023-12-25 · Updated 2025-04-25 · CVE-2023-37186

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions C-blosc2 versions prior to 2.9.3

Description The issue is related to a NULL pointer dereference in the ndlz/ndlz8x8.c file of C-blosc2. This occurs when a NULL pointer is passed to the memset function.

Recommendations For versions prior to 2.9.3, update to version 2.9.3 or later to resolve the issue.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2023-37186

Affected Products

C-Blosc2

References · 7

• 🔥 https://github.com/Blosc/c-blosc2/issues/522 · Exploit
• https://github.com/Blosc/c-blosc2/commit/d55bfcd6804699e1435dc3e233fd76c8a5d3f9e3 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-37186 · Security Note
• https://osv.dev/vulnerability/CVE-2023-37186 · Vendor Advisory
• https://github.com/Blosc/c-blosc2/compare/v2.9.2...v2.9.3 · Note
• https://t.me/cvenotify/119820 · Telegram Post
• https://t.me/cvenotify/65093 · Telegram Post