CVE-2017-7479

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Summary

CVECVE-2017-7479
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-05-15 18:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionOpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.

Risk And Classification

Primary CVSS: v3.0 6.5 MEDIUM from [email protected]

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

Problem Types: CWE-617 | CWE-617 CWE-617

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary6.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary4AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:S/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openvpn Openvpn 2.4.0 All All All
Application Openvpn Openvpn 2.4.0 alpha2 All All
Application Openvpn Openvpn 2.4.0 beta1 All All
Application Openvpn Openvpn 2.4.0 beta2 All All
Application Openvpn Openvpn 2.4.0 rc1 All All
Application Openvpn Openvpn 2.4.0 rc2 All All
Application Openvpn Openvpn 2.4.1 All All All
Application Openvpn Openvpn All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenVPN Technologies Inc Openvpn affected < 2.3.15 Not specified
CNA OpenVPN Technologies Inc Openvpn affected < 2.4.2 Not specified

References

ReferenceSourceLinkTags
QuarkslabAndCryptographyEngineerAudits – OpenVPN Community af854a3a-2127-422b-91ae-364da2661108 community.openvpn.net Vendor Advisory
OpenVPN CVE-2017-7479 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Debian -- Security Information -- DSA-3900-1 openvpn af854a3a-2127-422b-91ae-364da2661108 www.debian.org
OpenVPN Packet Processing Flaws Let Remote Users Cause the Target Service to Crash - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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