PT-2017-17762 · Openvpn+3 · Openvpn+3

Guido Vranken · Published 2017-05-11 · Updated 2019-10-03 · CVE-2017-7479

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenVPN versions prior to 2.3.15 OpenVPN versions prior to 2.4.2

Description The issue allows an authenticated attacker to cause a Denial of Service of the server. This occurs when the packet-ID counter rolls over, resulting in a reachable assertion.

Recommendations For versions prior to 2.3.15, update to version 2.3.15 or later. For versions prior to 2.4.2, update to version 2.4.2 or later.

Fix

DoS

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

ALT-PU-2017-1606

CVE-2017-7479

DLA-944-1

DSA-3900-1

MGASA-2017-0152

SUSE-SU-2017:1622-1

SUSE-SU-2017:1718-1

SUSE-SU-2017:2838-1

USN-3284-1

USN-3339-1

Affected Products

Alt Linux

Openvpn

Suse

Ubuntu

References · 61

• http://debian.org/security/2017/dsa-3900 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7478 · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-00021 · Security Note
• https://ubuntu.com/security/notices/USN-3339-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7521 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7521 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2017:1718-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/openvpn · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7520 · Security Note
• https://osv.dev/vulnerability/MGASA-2017-0152 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3339-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7508 · Security Note
• https://ubuntu.com/usn/usn-3284-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-3900-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-7479 · Vendor Advisory