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AUSCERT External Security Bulletin Redistribution
ESB-2020.0482
USN-4276-1: Yubico PIV Tool vulnerabilities
12 February 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Yubico PIV Tool
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Console/Physical
Access Privileged Data -- Console/Physical
Resolution: Patch/Upgrade
CVE Names: CVE-2018-14780 CVE-2018-14779
Reference: ESB-2019.1479
ESB-2018.2351
Original Bulletin:
https://usn.ubuntu.com/4276-1/
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USN-4276-1: Yubico PIV Tool vulnerabilities
11 February 2020
Yubico PIV Tool vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.04 LTS
Summary
Yubico PIV Tool could be made to crash or run programs as an administrator if
it received specially crafted input.
Software Description
o yubico-piv-tool - Command line tool for the YubiKey PIV applet
Details
It was discovered that libykpiv, a supporting library of the Yubico PIV Tool
and YubiKey PIV Manager, mishandled specially crafted input. An attacker with a
custom-made, malicious USB device could potentially execute arbitrary code on a
computer running the Yubico PIV Tool or Yubikey PIV Manager.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04 LTS
libykpiv1 - 1.4.2-2ubuntu0.1
ykcs11 - 1.4.2-2ubuntu0.1
yubico-piv-tool - 1.4.2-2ubuntu0.1
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
After a standard system update you need to reboot your computer to make all the
necessary changes.
References
o CVE-2018-14779
o CVE-2018-14780
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