CVE-2017-2784

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 v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

V3 Legend

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

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2017-01	Mitigation Vendor Advisory
http://www.talosintelligence.com/reports/TALOS-2017-0274/	Exploit Technical Description Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201706-18

Configurations

Configuration 1 (hide)

OR	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:2.1.2:::::::*
	cpe:2.3:a:arm:mbed_tls:2.1.3:::::::*
	cpe:2.3:a:arm:mbed_tls:2.4.0:::::::*
	cpe:2.3:a:arm:mbed_tls:2.0.0:::::::*
	cpe:2.3:a:arm:mbed_tls::::::::
	cpe:2.3:a:arm:mbed_tls:2.1.0:::::::*
	cpe:2.3:a:arm:mbed_tls:2.1.1:::::::*

Information

Published : 2017-04-20 11:59

Updated : 2022-04-19 12:15

NVD link : CVE-2017-2784

Mitre link : CVE-2017-2784

JSON object : View

CWE

CWE-295

Improper Certificate Validation

Products Affected

arm

mbed_tls

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8.1 /10