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

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CVE-2017-2784

Severity CVSS v4.0:
Pending analysis
Type:
CWE-295 Improper Certificate Validation
Publication date:
20/04/2017
Last modified:
20/04/2025

Description

An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2. A specially crafted x509 certificate, when parsed by mbed TLS library, can cause an invalid free of a stack pointer leading to a potential remote code execution. In order to exploit this vulnerability, an attacker can act as either a client or a server on a network to deliver malicious x509 certificates to vulnerable applications.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.10 HIGH
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
8.10
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

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

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* 1.3.18 (including)
cpe:2.3:a:arm:mbed_tls:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.4:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.5:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.1.6:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:2.4.0:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools