CVE-2019-13377 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IELLEPIXWQOJFW4SZMU3WQHO63JFAHA4/ https://seclists.org/bugtraq/2019/Sep/56 https://usn.ubuntu.com/4098-1/ https://w1.fi/cgit/hostap/commit/?id=147bf7b88a9c231322b5b574263071ca6dbb0503 https://w1.fi/cgit/hostap/commit/?id=cd803299ca485eb857e37c88f973fccfbb8600e5 https://www.debian.org/security/2019/dsa-4538

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.9