Vulnerability CVE-2019-13377
Published: 2019-08-15

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.

Type:

CWE-200

 (Information Exposure)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
W1.fi -> Hostapd 
Fedoraproject -> Fedora 
Canonical -> Ubuntu linux 

 References:
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
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