CVE-2017-7521

2017-06-2100:00:00

ubuntu.com

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.012 Low

EPSS

Percentile

85.0%

JSON

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote
denial-of-service due to memory exhaustion caused by memory leaks and
double-free issue in extract_x509_extension().

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=865480>

Notes

Author	Note
leosilva	as debian wheezy, precise-esm is not affected, code not present.

OSVersionArchitecturePackageVersionFilename
ubuntu17.10noarchopenvpn< 2.4.0-5ubuntu2UNKNOWN
ubuntu14.04noarchopenvpn< 2.3.2-7ubuntu3.2UNKNOWN
ubuntu16.04noarchopenvpn< 2.3.10-1ubuntu2.1UNKNOWN
ubuntu16.10noarchopenvpn< 2.3.11-1ubuntu2.1UNKNOWN
ubuntu17.04noarchopenvpn< 2.4.0-4ubuntu1.3UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	17.10	noarch	openvpn	< 2.4.0-5ubuntu2	UNKNOWN
ubuntu	14.04	noarch	openvpn	< 2.3.2-7ubuntu3.2	UNKNOWN
ubuntu	16.04	noarch	openvpn	< 2.3.10-1ubuntu2.1	UNKNOWN
ubuntu	16.10	noarch	openvpn	< 2.3.11-1ubuntu2.1	UNKNOWN
ubuntu	17.04	noarch	openvpn	< 2.4.0-4ubuntu1.3	UNKNOWN