USN-4734-2

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USN-4734-2

Summary: wpa vulnerabilities

Details: 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)

References: https://ubuntu.com/security/notices/USN-4734-2, https://ubuntu.com/security/CVE-2020-12695, https://ubuntu.com/security/CVE-2021-0326