Use of Uninitialized Resource Affecting libu2f-host package, versions <1.1.2-2+deb9u2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-DEBIAN9-LIBU2FHOST-339893
- published5 Mar 2019
- disclosed5 Mar 2019
Introduced: 5 Mar 2019
CVE-2019-9578 (opens in a new tab)How to fix?
Upgrade Debian:9 libu2f-host to version 1.1.2-2+deb9u2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libu2f-host package and not the libu2f-host package as distributed by Debian.
See How to fix? for Debian:9 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2019-9578
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMA4H6AZFYIR3LA5VKKEJZNCCIVMUCFQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S4YCFMSNMXZ7XC4U6WXPQA7JCXC6VOAJ/
- https://security.gentoo.org/glsa/202004-15
- https://github.com/Yubico/libu2f-host/commit/e4bb58cc8b6202a421e65f8230217d8ae6e16eb5
- https://blog.inhq.net/posts/yubico-libu2f-host-vuln-part2/
- https://developers.yubico.com/libu2f-host/Release_Notes.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-9578
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMA4H6AZFYIR3LA5VKKEJZNCCIVMUCFQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S4YCFMSNMXZ7XC4U6WXPQA7JCXC6VOAJ/