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{
"schema_version": "1.7.0",
"id": "USN-4757-2",
"summary": "wpa vulnerability",
"details": "USN-4757-1 fixed a vulnerability in wpa_supplicant and hostapd. This update\nprovides the corresponding update for Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that wpa_supplicant did not properly handle P2P\n (Wi-Fi Direct) provision discovery requests in some situations. A\n physically proximate attacker could use this to cause a denial of service\n or possibly execute arbitrary code.\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-27803"
],
"related": [],
"published": "2021-03-04T17:54:50Z",
"modified": "2026-02-10T04:42:05Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "wpa",
"purl": "pkg:deb/ubuntu/wpa@2.1-0ubuntu1.7+esm4?arch=source&distro=trusty/esm"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1-0ubuntu1.7+esm4"
}
]
}
],
"versions": [
"1.0-3ubuntu2",
"1.0-3ubuntu3",
"1.0-3ubuntu4",
"2.1-0ubuntu1",
"2.1-0ubuntu1.1",
"2.1-0ubuntu1.2",
"2.1-0ubuntu1.3",
"2.1-0ubuntu1.4",
"2.1-0ubuntu1.5",
"2.1-0ubuntu1.6",
"2.1-0ubuntu1.7",
"2.1-0ubuntu1.7+esm1",
"2.1-0ubuntu1.7+esm2",
"2.1-0ubuntu1.7+esm3"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "hostapd",
"binary_version": "1:2.1-0ubuntu1.7+esm4"
},
{
"binary_name": "wpagui",
"binary_version": "2.1-0ubuntu1.7+esm4"
},
{
"binary_name": "wpasupplicant",
"binary_version": "2.1-0ubuntu1.7+esm4"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"cves": [
{
"id": "CVE-2021-27803",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4757-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-27803"
}
]
}