CVE-2017-7522
Published: 27 June 2017
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in 2.4 in Debian/Ubuntu, package is built with openssl |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
openvpn Launchpad, Ubuntu, Debian |
trusty |
Not vulnerable
(2.3.2-7ubuntu3.1)
|
| upstream |
Released
(2.4.3, 2.3.17)
|
|
| xenial |
Not vulnerable
(2.3.10-1ubuntu2)
|
|
| yakkety |
Not vulnerable
(2.3.11-1ubuntu2)
|
|
| zesty |
Not vulnerable
(code not compiled)
|
|
|
Patches: upstream: https://github.com/OpenVPN/openvpn/commit/426392940c upstream: https://github.com/OpenVPN/openvpn/commit/67edada0be |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |