Vulnerability in Yubico Libu2f-Host
CVE-2019-9578
In devs.c in Yubico libu2f-host before 1.1.8, the response to init is misparsed, leaking uninitialized stack memory back to the device.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
Weakness classification (CWE)
References
- developers.yubico.com/libu2f-host/Release_Notes.html (Release Notes, Vendor Advisory)
- github.com/Yubico/libu2f-host/commit/e4bb58cc8b6202a421e65f8230217d8ae6e16eb5 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html (vendor-advisory)
- blog.inhq.net/posts/yubico-libu2f-host-vuln-part2/
- security.gentoo.org/glsa/202004-15 (vendor-advisory)
Frequently asked questions
- What is CVE-2019-9578?
- CVE-2019-9578 is a high-severity vulnerability in Yubico Libu2f-Host, classified under Use of Uninitialized Resource. CVSS score: 7.5/10. Published 2019-03-05.
- How severe is CVE-2019-9578?
- High severity. CVSS v3 base score is 7.5 out of 10.