[manjaro-security] [ASA-201902-7] libu2f-host: arbitrary code execution
anthraxx at archlinux.org
Tue Feb 12 18:45:35 CET 2019
Arch Linux Security Advisory ASA-201902-7
Date : 2019-02-11
CVE-ID : CVE-2018-20340
Package : libu2f-host
Type : arbitrary code execution
Remote : No
Link : https://security.archlinux.org/AVG-884
The package libu2f-host before version 1.1.7-1 is vulnerable to
arbitrary code execution.
Upgrade to 1.1.7-1.
# pacman -Syu "libu2f-host>=1.1.7-1"
The problem has been fixed upstream in version 1.1.7.
Yubico library libu2f-host prior to version 1.1.7 contains an unchecked
buffer, which could allow a buffer overflow. Libu2f-host is a library
that implements the host party of the U2F protocol. This issue can
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. Users of the YubiKey PAM U2F Tool are
the most impacted since the arbitrary code could execute with elevated
A malicious USB device can execute arbitrary code on the host.
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