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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/Yubico/libu2f-host/commit/e4bb58cc8b6202a421e65f8230217d8ae6e16eb5	Patch Third Party Advisory
https://developers.yubico.com/libu2f-host/Release_Notes.html	Vendor Advisory Release Notes
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S4YCFMSNMXZ7XC4U6WXPQA7JCXC6VOAJ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMA4H6AZFYIR3LA5VKKEJZNCCIVMUCFQ/
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html
https://blog.inhq.net/posts/yubico-libu2f-host-vuln-part2/
https://security.gentoo.org/glsa/202004-15

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Configurations

Configuration 1 (hide)

cpe:2.3:a:yubico:libu2f-host:*:*:*:*:*:*:*:*

Information

Published : 2019-03-05 15:29

Updated : 2020-08-24 10:37

NVD link : CVE-2019-9578

Mitre link : CVE-2019-9578

JSON object : View

CWE

CWE-908

Use of Uninitialized Resource

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Products Affected

yubico

libu2f-host

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