Vulnerability in W1.fi Hostapd
CVE-2019-13377
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.025 (84.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.025 · change: +0.003
Affected products
- W1.fi Hostapd
- Canonical Ubuntu Linux — versions 18.04, 19.04
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 30
Weakness classification (CWE)
References
- w1.fi/cgit/hostap/commit/ (Patch, Mailing List, Vendor Advisory)
- w1.fi/cgit/hostap/commit/ (Patch, Mailing List, Vendor Advisory)
- usn.ubuntu.com/4098-1/ (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2019/dsa-4538 (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2019/Sep/56 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-13377?
- CVE-2019-13377 is a medium-severity vulnerability in W1.fi Hostapd, classified under Observable Discrepancy. CVSS score: 5.9/10. Published 2019-08-15.
- How severe is CVE-2019-13377?
- Medium severity. CVSS v3 base score is 5.9 out of 10.