CVE-2017-7521
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
Description
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().
Overview
- CVE ID
- CVE-2017-7521
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2017-06-27T13:29:00
- Last Modified Date
- 2019-10-03T00:03:26
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* | 1 | OR | 2.3.16 | |
| cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openvpn:openvpn:2.4.0:alpha2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openvpn:openvpn:2.4.0:beta1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openvpn:openvpn:2.4.0:beta2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openvpn:openvpn:2.4.0:rc1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openvpn:openvpn:2.4.0:rc2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openvpn:openvpn:2.4.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:openvpn:openvpn:2.4.2:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.9
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243 | Vendor Advisory |
| http://www.securityfocus.com/bid/99230 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038768 | |
| http://www.debian.org/security/2017/dsa-3900 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-7521 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7521 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:28:02 | Added to TrackCVE | |||
| 2022-12-02 18:06:55 | 2017-06-27T13:29Z | 2017-06-27T13:29:00 | CVE Published Date | updated |
| 2022-12-02 18:06:55 | 2019-10-03T00:03:26 | CVE Modified Date | updated | |
| 2022-12-02 18:06:55 | Modified | Vulnerability Status | updated |