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CVE-2019-9578

Date: March 5, 2019

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.

Severity Score

7.5

Related Resources (14)

Url: https://security-tracker.debian.org/tracker/CVE-2019-9578

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2019-9578

Url: https://nvd.nist.gov/vuln/detail/CVE-2019-9578

Url: http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html

Url: https://developers.yubico.com/libu2f-host/Release_Notes.html

Url: https://security.gentoo.org/glsa/202004-15

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S4YCFMSNMXZ7XC4U6WXPQA7JCXC6VOAJ/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMA4H6AZFYIR3LA5VKKEJZNCCIVMUCFQ/

Url: http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMA4H6AZFYIR3LA5VKKEJZNCCIVMUCFQ/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S4YCFMSNMXZ7XC4U6WXPQA7JCXC6VOAJ/

Url: https://github.com/Yubico/libu2f-host/commit/e4bb58cc8b6202a421e65f8230217d8ae6e16eb5

Url: https://blog.inhq.net/posts/yubico-libu2f-host-vuln-part2/

Url: https://www.mend.io/vulnerability-database/CVE-2019-9578

Severity Score

7.5

Weakness Type (CWE)

Use of Uninitialized Resource

CWE-908

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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