Executive Summary

Informations
Name CVE-2017-7521 First vendor Publication 2017-06-27
Vendor Cve Last vendor Modification 2019-10-03

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.9
Base Score 5.9 Environmental Score 5.9
impact SubScore 3.6 Temporal Score 5.9
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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().

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7521

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-772 Missing Release of Resource after Effective Lifetime
50 % CWE-415 Double Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 171

Nessus® Vulnerability Scanner

Date Description
2017-07-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-f8a114cd09.nasl - Type : ACT_GATHER_INFO
2017-07-03 Name : The remote Fedora host is missing a security update.
File : fedora_2017-5596f2f94d.nasl - Type : ACT_GATHER_INFO
2017-06-30 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-730.nasl - Type : ACT_GATHER_INFO
2017-06-28 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2017-852.nasl - Type : ACT_GATHER_INFO
2017-06-28 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3900.nasl - Type : ACT_GATHER_INFO
2017-06-26 Name : The remote Fedora host is missing a security update.
File : fedora_2017-0639fb1490.nasl - Type : ACT_GATHER_INFO
2017-06-23 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-3339-1.nasl - Type : ACT_GATHER_INFO
2017-06-22 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2017-172-01.nasl - Type : ACT_GATHER_INFO
2017-06-22 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_9f65d38256a411e783e3080027ef73ec.nasl - Type : ACT_GATHER_INFO
2017-06-22 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-1635-1.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/99230
CONFIRM https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
DEBIAN http://www.debian.org/security/2017/dsa-3900
SECTRACK http://www.securitytracker.com/id/1038768

Alert History

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Date Informations
2022-10-11 01:13:15
  • Multiple Updates
2021-05-05 01:27:03
  • Multiple Updates
2021-05-04 13:04:53
  • Multiple Updates
2021-04-22 02:18:23
  • Multiple Updates
2020-05-23 02:08:36
  • Multiple Updates
2020-05-23 01:03:55
  • Multiple Updates
2019-10-03 09:20:33
  • Multiple Updates
2017-11-04 09:23:59
  • Multiple Updates
2017-09-22 13:24:46
  • Multiple Updates
2017-07-18 13:24:51
  • Multiple Updates
2017-07-07 09:21:37
  • Multiple Updates
2017-07-05 21:23:03
  • Multiple Updates
2017-07-04 13:23:43
  • Multiple Updates
2017-07-01 13:24:15
  • Multiple Updates
2017-06-29 13:23:35
  • Multiple Updates
2017-06-29 09:21:43
  • Multiple Updates
2017-06-27 17:22:41
  • First insertion