USN-3176-1: PCSC-Lite vulnerability

23 January 2017

pcsc-lite vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 16.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


PCSC-Lite could be made to crash or run programs as an administrator if it received specially crafted input.

Software Description

  • pcsc-lite - Middleware to access a smart card using PC/SC


Peter Wu discovered that the PC/SC service did not correctly handle certain resources. A local attacker could use this issue to cause PC/SC to crash, resulting in a denial of service, or possibly execute arbitrary code with root privileges.

Update instructions

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

Ubuntu 16.10
pcscd - 1.8.14-1ubuntu1.16.10.1
Ubuntu 16.04 LTS
pcscd - 1.8.14-1ubuntu1.16.04.1
Ubuntu 14.04 LTS
pcscd - 1.8.10-1ubuntu1.1
Ubuntu 12.04 LTS
pcscd - 1.7.4-2ubuntu2.1

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.