CVE-2018-9336

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 v3.0 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

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

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6	Release Notes Third Party Advisory
https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b	Patch Third Party Advisory
https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24	Release Notes Vendor Advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761	Mailing List Third Party Advisory
https://www.tenable.com/security/research/tra-2018-09	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:slackware:slackware_linux:14.1:::::::*
	cpe:2.3:o:slackware:slackware_linux:13.1:::::::*
	cpe:2.3:o:slackware:slackware_linux:14.0:::::::*
	cpe:2.3:o:slackware:slackware_linux:13.0:::::::*
	cpe:2.3:o:slackware:slackware_linux:13.37:::::::*

Information

Published : 2018-05-01 11:29

Updated : 2018-06-13 07:27

NVD link : CVE-2018-9336

Mitre link : CVE-2018-9336

JSON object : View

CWE

CWE-415

Double Free

Products Affected

slackware

slackware_linux

openvpn

openvpn

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6", "name": "https://github.com/OpenVPN/openvpn/releases/tag/v2.4.6", "tags": ["Release Notes", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b", "name": "https://github.com/OpenVPN/openvpn/commit/1394192b210cb3c6624a7419bcf3ff966742e79b", "tags": ["Patch", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24", "name": "https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2018&m=slackware-security.568761", "name": "SSA:2018-116-01", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SLACKWARE"}, {"url": "https://www.tenable.com/security/research/tra-2018-09", "name": "https://www.tenable.com/security/research/tra-2018-09", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-415"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-9336", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": true, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}}, "publishedDate": "2018-05-01T18:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.4.6", "versionStartIncluding": "2.4.0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:slackware:slackware_linux:14.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:slackware:slackware_linux:13.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:slackware:slackware_linux:14.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:slackware:slackware_linux:13.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:slackware:slackware_linux:13.37:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2018-06-13T14:27Z"}

7.8 /10