Home/CVE/OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control
CVE

CVE-2017-7478

OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control

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.

HIGH · CVSS 7.5 EPSS 0.04599
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-617Reachable Assertion
▤

Affected Products & Versions

1
openvpnall versions
⚠

Public Exploits & PoCs

2
dosOpenVPN 2.4.0 - Denial of Serviceverified
pocwww.exploit-db.com · 41993www.exploit-db.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 May 2017 · 06:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

4
suse-csafSUSE-SU-2017:2838-1
suse-csafSUSE-SU-2017:1718-1
suse-csafSUSE-SU-2017:1622-1
usnUSN-3284-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/98444
http://www.securitytracker.com/id/1038473
https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAuditsVendor Advisory
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