Executive Summary

Summary
Titlelibu2f-host security update
Informations
NameDSA-4389First vendor Publication2019-02-11
VendorDebianLast vendor Modification2019-02-11
Severity (Vendor) N/ARevision1

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score4.6Attack RangeLocal
Cvss Impact Score6.4Attack ComplexityLow
Cvss Expoit Score3.9AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

Christian Reitter discovered that libu2f-host, a library implementing the host-side of the U2F protocol, failed to properly check for a buffer overflow. This would allow an attacker with a custom made malicious USB device masquerading as a security key, and physical access to a computer where PAM U2F or an application with libu2f-host integrated, to potentially execute arbitrary code on that computer.

For the stable distribution (stretch), this problem has been fixed in version 1.1.2-2+deb9u1.

We recommend that you upgrade your libu2f-host packages.

For the detailed security status of libu2f-host please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libu2f-host

Original Source

Url : http://www.debian.org/security/2019/dsa-4389

CWE : Common Weakness Enumeration

%idName
100 %CWE-119Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application1
Os1

Alert History

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0
1
2
DateInformations
2019-03-27 21:22:01
  • Multiple Updates
2019-03-21 21:21:40
  • Multiple Updates
2019-02-11 17:18:41
  • First insertion