VULNERABILITY INTELLIGENCE
CVE-2017-2784
CVSS score8.1 HIGH
EPSS probability3.42%
CISA KEVNot currently listed
Published2017-04-20
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Weakness classification
- CWE-295: Improper Certificate Validation
Primary references
- talos-cna@cisco.com — Exploit, Technical Description, Third Party Advisory, VDB Entry
- talos-cna@cisco.com
- talos-cna@cisco.com — Mitigation, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory