High severity · published May 15, 2017
CVE-2017-7478
OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet
7.5
CVSS
13.8%
EPSS
No
On KEV
Description
OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)13.8% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openvpn · Openvpn
2.3.12; 2.3.13; 2.3.14; 2.4.0; 2.4.0; 2.4.0; +4 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-7478
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-7478
www.securityfocus.com
http://www.securityfocus.com/bid/98444
www.securitytracker.com
http://www.securitytracker.com/id/1038473
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
www.exploit-db.com
https://www.exploit-db.com/exploits/41993/
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