PT-2018-18991 · Openvpn+2 · Openvpn+2

Jacob Baines · Published 2018-05-01 · Updated 2024-06-15 · CVE-2018-9336

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenVPN versions 2.4.0 through 2.4.5

Description The issue allows a local attacker to cause a double-free of memory by sending a malformed request to the interactive service, potentially leading to a denial-of-service through memory corruption or possibly having unspecified other impact, including privilege escalation.

Recommendations For OpenVPN versions 2.4.0 through 2.4.5, update to version 2.4.6 or later to resolve the issue.

Exploit

Fix

DoS

Double Free

Weakness Enumeration

CWE-415

Related Identifiers

ALT-PU-2018-1644

CVE-2018-9336

MGASA-2018-0329

OPENSUSE-SU-2018_1912-1

OPENSUSE-SU-2024:11128-1

SUSE-SU-2018:1888-1

SUSE-SU-2018_1888-1

Affected Products

Alt Linux

Openvpn

Suse

References · 36

• 🔥 https://tenable.com/security/research/tra-2018-09 · Exploit
• https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b · Patch
• https://advisories.mageia.org/MGASA-2018-0329.html · Security Note
• https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2018-0329 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9336 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:1888-1 · Vendor Advisory
• http://slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-9336 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-9336 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7544 · Security Note
• https://errata.altlinux.org/ALT-PU-2018-1644 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11128-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2018-9336 · Vendor Advisory
• https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6 · Note