Vulnerability CVE-2018-9336

Vulnerability Name:

CVE-2018-9336 (CCN-142490)

Assigned:

2018-04-26

Published:

2018-04-26

Updated:

2018-06-13

Summary:

openvpnserv.exe (aka the interactive service helper) in OpenVPN 2.4.x before 2.4.6 allows a local attacker to cause a double-free of memory by sending a malformed request to the interactive service. This could cause a denial-of-service through memory corruption or possibly have unspecified other impact including privilege escalation.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-415

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2018-9336

Source: CCN
Type: BugTraq Mailing List, Thu, 26 Apr 2018 21:43:21 -0700 (PDT)
[slackware-security] openvpn (SSA:2018-116-01)

Source: SLACKWARE
Type: Mailing List, Third Party Advisory
SSA:2018-116-01

Source: CONFIRM
Type: Release Notes, Vendor Advisory
https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24

Source: XF
Type: UNKNOWN
openvpn-cve20189336-dos(142490)

Source: CCN
Type: openvpn GIT Repository
Fix potential double-free() in Interactive Service (CVE-2018-9336)

Source: CONFIRM
Type: Patch, Third Party Advisory
https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b

Source: CONFIRM
Type: Release Notes, Third Party Advisory
https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6

Source: MISC
Type: Exploit, Third Party Advisory
https://www.tenable.com/security/research/tra-2018-09

Vulnerable Configuration:

Configuration 1:

cpe:/a:openvpn:openvpn:*:*:*:*:*:*:*:* (Version >= 2.4.0 and < 2.4.6)

Configuration 2:

cpe:/o:slackware:slackware_linux:13.0:*:*:*:*:*:*:*

OR cpe:/o:slackware:slackware_linux:13.1:*:*:*:*:*:*:*

OR cpe:/o:slackware:slackware_linux:13.37:*:*:*:*:*:*:*

OR cpe:/o:slackware:slackware_linux:14.0:*:*:*:*:*:*:*

OR cpe:/o:slackware:slackware_linux:14.1:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:openvpn:openvpn:2.4.5:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:20189336	V	CVE-2018-9336	2023-06-22
oval:org.opensuse.security:def:7727	P	openvpn-2.5.6-150400.3.6.1 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:3133	P	libXRes1-1.0.7-3.53 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:94763	P	openvpn-2.5.5-150400.1.5 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:1181	P	Security update for the Linux Kernel (Important)	2022-06-14
oval:org.opensuse.security:def:523	P	Security update for u-boot (Important)	2022-06-13
oval:org.opensuse.security:def:252	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:843	P	Security update for the Linux Kernel (Important)	2022-03-30
oval:org.opensuse.security:def:1189	P	Security update for the Linux Kernel (Critical)	2022-02-11
oval:org.opensuse.security:def:113069	P	openvpn-2.5.3-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:69935	P	Security update for curl (Moderate)	2021-10-06
oval:org.opensuse.security:def:106507	P	openvpn-2.5.3-1.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:89767	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:61612	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:71353	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:103422	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:96732	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:47597	P	dpdk-17.11.4-3.6 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47721	P	libimobiledevice6-1.2.0-7.31 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47959	P	automake-1.13.4-6.2 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48035	P	gtk2-data-2.24.31-9.6.28 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47045	P	liblua5_2-32bit-5.2.2-4.2 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48105	P	libdmx1-1.1.3-3.51 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48259	P	pam_yubico-2.26-1.25 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47180	P	xdg-utils-20140630-5.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48201	P	libssh4-0.8.7-1.31 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47505	P	strongswan-5.1.3-25.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47707	P	libfreetype6-2.6.3-7.15.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47745	P	libmusicbrainz4-2.1.5-27.79 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47842	P	pam_krb5-2.4.4-4.4 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47044	P	libltdl7-2.4.2-14.30 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48043	P	hyper-v-7-7.5 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48167	P	libpango-1_0-0-1.40.1-9.5 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47059	P	libpcsclite1-1.8.10-3.4 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48170	P	libpcsclite1-1.8.10-7.6.3 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47373	P	liblzo2-2-2.08-1.13 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47706	P	libfreebl3-3.29.5-58.12.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48272	P	pigz-2.3-5.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:72011	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:101028	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62270	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:67770	P	Security update for the Linux Kernel (Live Patch 19 for SLE 15) (Important)	2021-06-18
oval:org.opensuse.security:def:48832	P	freerdp-2.0.0~git.1463131968.4e66df7-11.69 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48964	P	rhythmbox-3.4-6.14 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48934	P	libndp0-1.6-2.2 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48621	P	sblim-sfcb-1.4.8-8.2 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:71010	P	libpng16-16-1.6.34-1.19 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48767	P	cyrus-sasl-digestmd5-32bit-2.1.26-7.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:71123	P	xen-libs-4.10.1_04-1.4 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48910	P	gstreamer-0_10-plugins-good-0.10.31-16.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48863	P	libpcrecpp0-32bit-8.39-7.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48407	P	dstat-0.7.2-1.2 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48705	P	rhythmbox-3.0.2-1.92 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:100612	P	(Moderate)	2021-05-27
oval:org.opensuse.security:def:69830	P	Security update for qemu (Important)	2021-04-16
oval:org.opensuse.security:def:66487	P	Security update for gimp (Moderate)	2021-01-04
oval:org.opensuse.security:def:1827	P	perl-Config-IniFiles-2.94-1.23 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:116836	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:93899	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:61932	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:71673	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:107278	P	openvpn-2.4.3-5.3.19 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:64423	P	openvpn on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:67670	P	libdmx-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:50210	P	pulseaudio-module-bluetooth on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:66579	P	openvpn on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49284	P	openvpn on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:64336	P	libjasper4 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:50264	P	Security update for openvpn (Moderate)	2020-12-01
oval:org.opensuse.security:def:73152	P	libevent-2_1-8 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73270	P	openvpn on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49230	P	libserf-1-1 on GA media (Moderate)	2020-12-01
oval:com.ubuntu.artful:def:20189336000	V	CVE-2018-9336 on Ubuntu 17.10 (artful) - medium.	2018-05-01
oval:com.ubuntu.bionic:def:20189336000	V	CVE-2018-9336 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-01
oval:com.ubuntu.bionic:def:201893360000000	V	CVE-2018-9336 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-01
oval:com.ubuntu.trusty:def:20189336000	V	CVE-2018-9336 on Ubuntu 14.04 LTS (trusty) - medium.	2018-05-01
oval:com.ubuntu.xenial:def:201893360000000	V	CVE-2018-9336 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-01
oval:com.ubuntu.xenial:def:20189336000	V	CVE-2018-9336 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-01

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