Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-29367

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
27/11/2020
Last modified:
25/04/2025

Description

blosc2.c in Blosc C-Blosc2 through 2.0.0.beta.5 has a heap-based buffer overflow when there is a lack of space to write compressed data.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.30 HIGH
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
9.30
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:blosc:c-blosc2:2.0.0:beta5:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools