CVE-2017-2784 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.talosintelligence.com/reports/TALOS-2017-0274/ https://security.gentoo.org/glsa/201706-18 https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2017-01

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1