{"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","modified":"2026-02-10T04:42:05Z","published":"2021-03-04T17:54:50Z","related":["UBUNTU-CVE-2021-27803"],"upstream":["CVE-2021-27803","UBUNTU-CVE-2021-27803"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4757-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-27803"}],"affected":[{"package":{"name":"wpa","ecosystem":"Ubuntu:Pro:14.04:LTS","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_version":"1:2.1-0ubuntu1.7+esm4","binary_name":"hostapd"},{"binary_version":"2.1-0ubuntu1.7+esm4","binary_name":"wpagui"},{"binary_version":"2.1-0ubuntu1.7+esm4","binary_name":"wpasupplicant"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4757-2.json","cves_map":{"cves":[{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-27803"}],"ecosystem":"Ubuntu:Pro:14.04:LTS"}}}],"schema_version":"1.7.3"}