Medium
qtwebkit-opensource-src, qtwebkit-source and 1 more products — security advisory
WKWebView in WebKit in Apple iOS before 10, iTunes before 12.5.1 on Windows, and Safari before 10 does not properly verify X.509 certificates from HTTPS servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
- Products
- qtwebkit-opensource-src, qtwebkit-source, webkitgtk
- Affected versions
- 2.3.2-0ubuntu10, 2.3.2-0ubuntu11, 2.4.10-0ubuntu1, 2.4.11-0ubuntu0.1, 2.4.9-2ubuntu2, 5.4.2+dfsg-1ubuntu2.1, 5.5.1+dfsg-2ubuntu1
- Fixed versions
- Not specified
- CVEs
- CVE-2016-4763
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:08 UTC · Revision 1
Source evidence
WKWebView in WebKit in Apple iOS before 10, iTunes before 12.5.1 on Windows, and Safari before 10 does not properly verify X.509 certificates from HTTPS servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
osv:UBUNTU-CVE-2016-4763
qtwebkit-opensource-src
Fixed versions: Not specified
qtwebkit-source
Fixed versions: Not specified
webkitgtk
Fixed versions: Not specified
Complete source record
{
"id": "b0ce710921ada2aa66cfc6bcf4e103fed1a90cdaaa5cbb8e8230f6ed15e5a923",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2016-4763",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2016-4763",
"summary": "WKWebView in WebKit in Apple iOS before 10, iTunes before 12.5.1 on Windows, and Safari before 10 does not properly verify X.509 certificates from HTTPS servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.",
"evidence": "osv:UBUNTU-CVE-2016-4763",
"products": [
{
"name": {
"value": "qtwebkit-opensource-src",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.4.2+dfsg-1ubuntu2.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.5.1+dfsg-2ubuntu1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "qtwebkit-source",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.3.2-0ubuntu10",
"evidence": "/affected/1/versions"
},
{
"value": "2.3.2-0ubuntu11",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "webkitgtk",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.9-2ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "2.4.10-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "2.4.11-0ubuntu0.1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2016-4763",
"aliases": [
"UBUNTU-CVE-2016-4763"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "qtwebkit-opensource-src",
"purl": "pkg:deb/ubuntu/qtwebkit-opensource-src?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"5.4.2+dfsg-1ubuntu2.1",
"5.5.1+dfsg-2ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4763.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libqt5webkit5",
"binary_version": "5.5.1+dfsg-2ubuntu1"
},
{
"binary_name": "libqt5webkit5-qmlwebkitplugin",
"binary_version": "5.5.1+dfsg-2ubuntu1"
},
{
"binary_name": "qml-module-qtwebkit",
"binary_version": "5.5.1+dfsg-2ubuntu1"
},
{
"binary_name": "qtwebkit5-doc-html",
"binary_version": "5.5.1+dfsg-2ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "qtwebkit-source",
"purl": "pkg:deb/ubuntu/qtwebkit-source?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"2.3.2-0ubuntu10",
"2.3.2-0ubuntu11"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4763.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libqtwebkit-qmlwebkitplugin",
"binary_version": "2.3.2-0ubuntu11"
},
{
"binary_name": "libqtwebkit4",
"binary_version": "2.3.2-0ubuntu11"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "webkitgtk",
"purl": "pkg:deb/ubuntu/webkitgtk?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"2.4.9-2ubuntu2",
"2.4.10-0ubuntu1",
"2.4.11-0ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4763.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-javascriptcoregtk-3.0",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "gir1.2-webkit-3.0",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "gir1.2-webkit2-3.0",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libjavascriptcoregtk-1.0-0",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libjavascriptcoregtk-3.0-0",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libjavascriptcoregtk-3.0-bin",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libwebkit2gtk-3.0-25",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libwebkitgtk-1.0-0",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libwebkitgtk-1.0-common",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libwebkitgtk-3.0-0",
"binary_version": "2.4.11-0ubuntu0.1"
},
{
"binary_name": "libwebkitgtk-3.0-common",
"binary_version": "2.4.11-0ubuntu0.1"
}
]
}
}
],
"modified": "2026-10-08T12:49:52.800171130Z",
"provider": "osv",
"upstream": [
"CVE-2016-4763"
],
"references": [
"https://ubuntu.com/security/CVE-2016-4763",
"https://support.apple.com/HT207143",
"https://support.apple.com/HT207157",
"https://support.apple.com/HT207158",
"https://www.cve.org/CVERecord?id=CVE-2016-4763"
]
},
"related_cves": [
{
"value": "CVE-2016-4763",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 99484,
"published_at": "2016-09-25T10:59:00+00:00"
}