Internet Bug Bounty: 4 severe remote + several minor OpenVPN vulnerabilities

2017-06-2310:58:19

guido

hackerone.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.017 Low

EPSS

Percentile

85.9%

JSON

CVE-2017-7521 Remote server crashes/double-free/memory leaks in certificate processing
CVE-2017-7520 Remote (including MITM) client crash, data leak
CVE-2017-7508 Remote server crash (forced assertion failure)
CVE-2017-7522 Crash mbed TLS/PolarSSL-based server
(no cve) Remote/mitm Null-pointer dereference in establish_http_proxy_passthru()
(no cve) Stack buffer overflow if long –tls-cipher is given
(no cve) Remote (including MITM) client stack buffer corruption

https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
https://guidovranken.wordpress.com/2017/06/21/the-openvpn-post-audit-bug-bonanza/