Medium
Security advisory
An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because the hostname check operates on uninitialized memory. The outcome is that a valid certificate is never accepted (only a malformed certificate may be accepted).
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-7042
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:36 UTC · Revision 1
Source evidence
An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because the hostname check operates on uninitialized memory. The outcome is that a valid certificate is never accepted (only a malformed certificate may be accepted).
osv:CVE-2020-7042
Complete source record
{
"id": "5a5c6a7dac3a4bbc3d26bf423630cdc116e21a4ca7608593e30b600c55ec07db",
"url": "https://osv.dev/vulnerability/CVE-2020-7042",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-7042",
"summary": "An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because the hostname check operates on uninitialized memory. The outcome is that a valid certificate is never accepted (only a malformed certificate may be accepted).",
"evidence": "osv:CVE-2020-7042",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-7042",
"aliases": [
"CVE-2020-7042"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/adrienverge/openfortivpn",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4"
},
{
"fixed": "9eee997d599a89492281fc7ffdd79d88cd61afc3"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:openfortivpn_project:openfortivpn:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.12.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "9eee997d599a89492281fc7ffdd79d88cd61afc3"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v1.11.0",
"v1.10.0",
"v1.9.0",
"v1.8.1",
"v1.8.0",
"v1.7.1",
"v1.7.0",
"v1.6.0",
"v1.5.0",
"v1.4.0",
"v1.3.1",
"v1.3.0",
"v1.2.0",
"v1.1.4",
"v1.1.3",
"v1.1.2",
"v1.1.1",
"v1.1.0",
"v1.0.1",
"v1.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7042.json",
"vanir_signatures": [
{
"id": "CVE-2020-7042-6fb1fe2a",
"digest": {
"threshold": 0.9,
"line_hashes": [
"283993573798252670453987687364804281647",
"274844904252654247726432834330319061935",
"112562871745171916936322649166284259591",
"17798813236066237521886087447635982369",
"2418362587896680329337858234838332300",
"109426978569026790148195875681155806346",
"164160928021241801951192137959973253490",
"289510098859083578787605135355407124387",
"258380727189941271346228600724644525725",
"25863080627499099625509319637019956460"
]
},
"source": "https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3",
"target": {
"file": "src/tunnel.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2020-7042-975f888f",
"digest": {
"length": 2386,
"function_hash": "229937577464691850782465159833446126831"
},
"source": "https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3",
"target": {
"file": "src/tunnel.c",
"function": "ssl_verify_cert"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:59:44Z"
}
}
],
"modified": "2026-10-20T13:59:44.239384142Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/",
"https://github.com/adrienverge/openfortivpn/issues/536",
"https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3",
"https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "30"
},
{
"last_affected": "30"
},
{
"introduced": "31"
},
{
"last_affected": "31"
},
{
"introduced": "32"
},
{
"last_affected": "32"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*"
],
"vendor_product": "opensuse:backports_sle",
"extracted_events": [
{
"range": [
{
"introduced": "15.0-sp1"
},
{
"last_affected": "15.0-sp1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-7042",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388504,
"published_at": "2020-02-27T18:15:11.547+00:00"
}