PT-2023-25821 · C-Blosc2 · C-Blosc2

Rish9101 · Published 2023-12-25 · Updated 2025-04-25 · CVE-2023-37185

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 function zfp prec decompress at zfp/blosc2-zfp.c. This indicates a problem where the code attempts to access memory through a pointer that has not been initialized, leading to potential crashes or other unexpected behavior.

Recommendations For versions prior to 2.9.3, update to version 2.9.3 or later to resolve the issue. As a temporary workaround, consider disabling the zfp prec decompress function until a patch is available.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2023-37185

Affected Products

C-Blosc2

References · 7

• 🔥 https://github.com/Blosc/c-blosc2/issues/519 · Exploit
• https://github.com/Blosc/c-blosc2/commit/425e8a9a59d49378d57e2116b6c9b0190a5986f5 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-37185 · Security Note
• https://osv.dev/vulnerability/CVE-2023-37185 · Vendor Advisory
• https://github.com/Blosc/c-blosc2/compare/v2.9.2...v2.9.3 · Note
• https://t.me/cvenotify/65092 · Telegram Post
• https://t.me/cvenotify/119819 · Telegram Post