{"id":"ALPINE-CVE-2018-9336","details":"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.","modified":"2025-12-03T22:48:23.922471Z","published":"2018-05-01T18:29:00.697Z","upstream":["CVE-2018-9336"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2018-9336"}],"affected":[{"package":{"name":"openvpn","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/openvpn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-r0"}]}],"versions":["2.0.9-r0","2.0.9-r1","2.0.9-r2","2.1.1-r0","2.1.1-r1","2.1.1-r2","2.1.3-r0","2.1.4-r0","2.1.4-r1","2.2.0-r0","2.2.0-r1","2.2.0-r2","2.2.2-r0","2.3.0-r0","2.3.1-r0","2.3.10-r0","2.3.10-r1","2.3.10-r2","2.3.11-r0","2.3.12-r0","2.3.12-r1","2.3.14-r0","2.3.2-r0","2.3.2-r1","2.3.2-r2","2.3.3-r0","2.3.4-r0","2.3.5-r0","2.3.6-r0","2.3.6-r1","2.3.7-r0","2.3.8-r0","2.3.8-r1","2.3.9-r0","2.4.0-r0","2.4.1-r0","2.4.1-r1","2.4.2-r0","2.4.3-r0","2.4.4-r0","2.4.4-r1","2.4.5-r0","2.4.5-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-9336.json"}},{"package":{"name":"openvpn","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/openvpn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-r0"}]}],"versions":["2.0.9-r0","2.0.9-r1","2.0.9-r2","2.1.1-r0","2.1.1-r1","2.1.1-r2","2.1.3-r0","2.1.4-r0","2.1.4-r1","2.2.0-r0","2.2.0-r1","2.2.0-r2","2.2.2-r0","2.3.0-r0","2.3.1-r0","2.3.10-r0","2.3.10-r1","2.3.10-r2","2.3.11-r0","2.3.12-r0","2.3.12-r1","2.3.14-r0","2.3.2-r0","2.3.2-r1","2.3.2-r2","2.3.3-r0","2.3.4-r0","2.3.5-r0","2.3.6-r0","2.3.6-r1","2.3.7-r0","2.3.8-r0","2.3.8-r1","2.3.9-r0","2.4.0-r0","2.4.1-r0","2.4.1-r1","2.4.2-r0","2.4.3-r0","2.4.4-r0","2.4.4-r1","2.4.5-r0","2.4.5-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-9336.json"}},{"package":{"name":"openvpn","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/openvpn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-r0"}]}],"versions":["2.0.9-r0","2.0.9-r1","2.0.9-r2","2.1.1-r0","2.1.1-r1","2.1.1-r2","2.1.3-r0","2.1.4-r0","2.1.4-r1","2.2.0-r0","2.2.0-r1","2.2.0-r2","2.2.2-r0","2.3.0-r0","2.3.1-r0","2.3.10-r0","2.3.10-r1","2.3.10-r2","2.3.11-r0","2.3.12-r0","2.3.12-r1","2.3.14-r0","2.3.2-r0","2.3.2-r1","2.3.2-r2","2.3.3-r0","2.3.4-r0","2.3.5-r0","2.3.6-r0","2.3.6-r1","2.3.7-r0","2.3.8-r0","2.3.8-r1","2.3.9-r0","2.4.0-r0","2.4.1-r0","2.4.1-r1","2.4.2-r0","2.4.3-r0","2.4.4-r0","2.4.4-r1","2.4.5-r0","2.4.5-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-9336.json"}},{"package":{"name":"openvpn","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/openvpn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-r0"}]}],"versions":["2.0.9-r0","2.0.9-r1","2.0.9-r2","2.1.1-r0","2.1.1-r1","2.1.1-r2","2.1.3-r0","2.1.4-r0","2.1.4-r1","2.2.0-r0","2.2.0-r1","2.2.0-r2","2.2.2-r0","2.3.0-r0","2.3.1-r0","2.3.10-r0","2.3.10-r1","2.3.10-r2","2.3.11-r0","2.3.12-r0","2.3.12-r1","2.3.14-r0","2.3.2-r0","2.3.2-r1","2.3.2-r2","2.3.3-r0","2.3.4-r0","2.3.5-r0","2.3.6-r0","2.3.6-r1","2.3.7-r0","2.3.8-r0","2.3.8-r1","2.3.9-r0","2.4.0-r0","2.4.1-r0","2.4.1-r1","2.4.2-r0","2.4.3-r0","2.4.4-r0","2.4.4-r1","2.4.5-r0","2.4.5-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-9336.json"}},{"package":{"name":"openvpn","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/openvpn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-r0"}]}],"versions":["2.0.9-r0","2.0.9-r1","2.0.9-r2","2.1.1-r0","2.1.1-r1","2.1.1-r2","2.1.3-r0","2.1.4-r0","2.1.4-r1","2.2.0-r0","2.2.0-r1","2.2.0-r2","2.2.2-r0","2.3.0-r0","2.3.1-r0","2.3.10-r0","2.3.10-r1","2.3.10-r2","2.3.11-r0","2.3.12-r0","2.3.12-r1","2.3.14-r0","2.3.2-r0","2.3.2-r1","2.3.2-r2","2.3.3-r0","2.3.4-r0","2.3.5-r0","2.3.6-r0","2.3.6-r1","2.3.7-r0","2.3.8-r0","2.3.8-r1","2.3.9-r0","2.4.0-r0","2.4.1-r0","2.4.1-r1","2.4.2-r0","2.4.3-r0","2.4.4-r0","2.4.4-r1","2.4.5-r0","2.4.5-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-9336.json"}},{"package":{"name":"openvpn","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/openvpn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.6-r0"}]}],"versions":["2.0.9-r0","2.0.9-r1","2.0.9-r2","2.1.1-r0","2.1.1-r1","2.1.1-r2","2.1.3-r0","2.1.4-r0","2.1.4-r1","2.2.0-r0","2.2.0-r1","2.2.0-r2","2.2.2-r0","2.3.0-r0","2.3.1-r0","2.3.10-r0","2.3.10-r1","2.3.10-r2","2.3.11-r0","2.3.12-r0","2.3.12-r1","2.3.14-r0","2.3.2-r0","2.3.2-r1","2.3.2-r2","2.3.3-r0","2.3.4-r0","2.3.5-r0","2.3.6-r0","2.3.6-r1","2.3.7-r0","2.3.8-r0","2.3.8-r1","2.3.9-r0","2.4.0-r0","2.4.1-r0","2.4.1-r1","2.4.2-r0","2.4.3-r0","2.4.4-r0","2.4.4-r1","2.4.5-r0","2.4.5-r1"],"eco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