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

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CVE-2020-5234

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
31/01/2020
Last modified:
24/02/2020

Description

MessagePack for C# and Unity before version 1.9.11 and 2.1.90 has a vulnerability where untrusted data can lead to DoS attack due to hash collisions and stack overflow. Review the linked GitHub Security Advisory for more information and remediation steps.

Impact

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

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
6.50
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:L/Au:S/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C

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

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:messagepack:messagepack:*:*:*:*:*:c\#:*:* 1.9.3 (excluding)
cpe:2.3:a:messagepack:messagepack:*:*:*:*:*:c\#:*:* 2.0.323 (including) 2.1.80 (excluding)
cpe:2.3:a:messagepack:messagepack:2.0.94:alpha:*:*:*:c\#:*:*
cpe:2.3:a:messagepack:messagepack:2.0.110:alpha:*:*:*:c\#:*:*
cpe:2.3:a:messagepack:messagepack:2.0.119:beta:*:*:*:c\#:*:*
cpe:2.3:a:messagepack:messagepack:2.0.123:beta:*:*:*:c\#:*:*
cpe:2.3:a:messagepack:messagepack:2.0.204:beta:*:*:*:c\#:*:*
cpe:2.3:a:messagepack:messagepack:2.0.270:rc:*:*:*:c\#:*:*
cpe:2.3:a:messagepack:messagepack:2.0.299:rc:*:*:*:c\#:*:*

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


References to Advisories, Solutions, and Tools