1. Ubuntu Security Notices
  2. USN-4276-1

USN-4276-1: Yubico PIV Tool vulnerabilities

Publication date

11 February 2020

Overview

Yubico PIV Tool could be made to crash or run programs as an administrator if it received specially crafted input.

Releases

Packages

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.

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

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
18.04 bionic libykpiv1 –  1.4.2-2ubuntu0.1
ykcs11 –  1.4.2-2ubuntu0.1
yubico-piv-tool –  1.4.2-2ubuntu0.1

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References

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