USN-4734-1 fixed several vulnerabilities in wpa_supplicant. This update provides the corresponding update for Ubuntu 14.04 ESM.
It was discovered that wpa_supplicant did not properly handle P2P (Wi-Fi Direct) group information in some situations, leading to a heap overflow. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-0326)
It was discovered that hostapd did not properly handle UPnP subscribe messages in some circumstances. An attacker could use this to cause a denial of service. (CVE-2020-12695)
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "1:2.1-0ubuntu1.7+esm3", "binary_name": "hostapd" }, { "binary_version": "2.1-0ubuntu1.7+esm3", "binary_name": "wpagui" }, { "binary_version": "2.1-0ubuntu1.7+esm3", "binary_name": "wpasupplicant" } ] }
{ "cves_map": { "ecosystem": "Ubuntu:Pro:14.04:LTS", "cves": [ { "severity": [ { "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2020-12695" }, { "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": "high", "type": "Ubuntu" } ], "id": "CVE-2021-0326" } ] } }