CVE-2017-2784
Published: 20 April 2017
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.
Priority
Status
Package | Release | Status |
---|---|---|
mbedtls Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(2.4.2-1)
|
bionic |
Not vulnerable
(2.4.2-1)
|
|
cosmic |
Not vulnerable
(2.4.2-1)
|
|
disco |
Not vulnerable
(2.4.2-1)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(2.4.2-1)
|
|
xenial |
Released
(2.2.1-2ubuntu0.1)
|
|
yakkety |
Released
(2.3.0-1ubuntu0.1)
|
|
zesty |
Not vulnerable
(2.4.2-1)
|
|
polarssl Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
(trusty was needs-triage)
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.1 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |