{"id":"UBUNTU-CVE-2021-27803","details":"A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.","modified":"2026-02-04T02:26:26.849985Z","published":"2021-02-26T23:15:00Z","related":["USN-4757-1","USN-4757-2"],"upstream":["CVE-2021-27803"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-27803"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/02/25/3"},{"type":"REPORT","url":"https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2021/02/27/1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4757-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4757-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=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":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27803.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/wpa@2.4-0ubuntu6.8?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4-0ubuntu6.8"}]}],"versions":["2.4-0ubuntu3","2.4-0ubuntu4","2.4-0ubuntu5","2.4-0ubuntu6","2.4-0ubuntu6.2","2.4-0ubuntu6.3","2.4-0ubuntu6.4","2.4-0ubuntu6.5","2.4-0ubuntu6.6","2.4-0ubuntu6.7"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"hostapd","binary_version":"1:2.4-0ubuntu6.8"},{"binary_name":"wpagui","binary_version":"2.4-0ubuntu6.8"},{"binary_name":"wpasupplicant","binary_version":"2.4-0ubuntu6.8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27803.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/wpa@2:2.6-15ubuntu2.8?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6-15ubuntu2.8"}]}],"versions":["2.4-0ubuntu10","2:2.4-1.1ubuntu1","2:2.6-15ubuntu1","2:2.6-15ubuntu2","2:2.6-15ubuntu2.1","2:2.6-15ubuntu2.2","2:2.6-15ubuntu2.3","2:2.6-15ubuntu2.4","2:2.6-15ubuntu2.5","2:2.6-15ubuntu2.6","2:2.6-15ubuntu2.7"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"hostapd","binary_version":"2:2.6-15ubuntu2.8"},{"binary_name":"wpagui","binary_version":"2:2.6-15ubuntu2.8"},{"binary_name":"wpasupplicant","binary_version":"2:2.6-15ubuntu2.8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27803.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/wpa@2:2.9-1ubuntu4.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.9-1ubuntu4.3"}]}],"versions":["2:2.9-1ubuntu2","2:2.9-1ubuntu3","2:2.9-1ubuntu4","2:2.9-1ubuntu4.1","2:2.9-1ubuntu4.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"hostapd","binary_version":"2:2.9-1ubuntu4.3"},{"binary_version":"2:2.9-1ubuntu4.3","binary_name":"wpagui"},{"binary_name":"wpasupplicant","binary_version":"2:2.9-1ubuntu4.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27803.json"}}],"schema_version":"1.7.3","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"}]}