{"id":"UBUNTU-CVE-2019-13377","details":"The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.","modified":"2026-01-30T00:44:54.785550Z","published":"2019-08-08T00:00:00Z","related":["USN-4098-1"],"upstream":["CVE-2019-13377"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-13377"},{"type":"REPORT","url":"https://wpa3.mathyvanhoef.com/#new"},{"type":"REPORT","url":"https://w1.fi/security/2019-6/sae-eap-pwd-side-channel-attack-update.txt"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4098-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-13377"}],"affected":[{"package":{"name":"wpa","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/wpa@2:2.6-15ubuntu2.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6-15ubuntu2.4"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:2.6-15ubuntu2.4","binary_name":"hostapd"},{"binary_version":"2:2.6-15ubuntu2.4","binary_name":"wpagui"},{"binary_version":"2:2.6-15ubuntu2.4","binary_name":"wpasupplicant"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-13377.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}