Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| W1.Fi | Hostapd | >= 2.0, <= 2.8 |
| Fedoraproject | Fedora | 30 |
| Canonical | Ubuntu Linux | 18.04 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://seclists.org/bugtraq/2019/Sep/56Mailing ListThird Party Advisory
- https://usn.ubuntu.com/4098-1/Third Party Advisory
- https://w1.fi/cgit/hostap/commit/?id=147bf7b88a9c231322b5b574263071ca6dbb0503Mailing ListPatchVendor Advisory
- https://w1.fi/cgit/hostap/commit/?id=cd803299ca485eb857e37c88f973fccfbb8600e5Mailing ListPatchVendor Advisory
- https://www.debian.org/security/2019/dsa-4538Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://seclists.org/bugtraq/2019/Sep/56Mailing ListThird Party Advisory
- https://usn.ubuntu.com/4098-1/Third Party Advisory
- https://w1.fi/cgit/hostap/commit/?id=147bf7b88a9c231322b5b574263071ca6dbb0503Mailing ListPatchVendor Advisory
- https://w1.fi/cgit/hostap/commit/?id=cd803299ca485eb857e37c88f973fccfbb8600e5Mailing ListPatchVendor Advisory
- https://www.debian.org/security/2019/dsa-4538Third Party Advisory
FAQ
What is CVE-2019-13377?
CVE-2019-13377 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 ...
How severe is CVE-2019-13377?
CVE-2019-13377 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-13377?
Check the references section above for vendor advisories and patch information. Affected products include: W1.Fi Hostapd, Fedoraproject Fedora, Canonical Ubuntu Linux, Debian Debian Linux.