A severe vulnerability has been found in Unix and Linux operating systems, that can affect Smart ID Digital Access component. This article describes how to handle the vulnerability.

An unprivileged user can exploit the vulnerability using sudo, which can cause a heap overflow to elevate privileges to root, without authentication, or even get listed in the sudoers file. 

1. Run this command to see if you have a vulnerable system:
   

   Code Block
   title Check if you have a vulnerable system
   sudoedit -s /

   
   

   1. If you have a vulnerable system, the response is 
      

      No Format
      nopanel true
      sudoedit: /: not a regular file

      
      

2. Depending on version, enter these commands to handle the vulnerability:

   1. For Digital Access 6.0.0 to 6.0.2
      

      Code Block
      title For Digital Access 6.0.0 to 6.0.2
      sudo apt update sudo apt install sudo=1.8.31-1ubuntu1.2

      
      

   2. For Digital Access 5.13.1 - 5.13.5
      

      Code Block
      title For Digital Access 5.13.1 to 5.13.5
      sudo apt update sudo apt install sudo=1.8.21p2-3ubuntu1.4

      
      

3. Run this command again:
   

   Code Block
   title Check the system again for vulnerability
   sudotoolsudoedit -s /

   
   

   1. The answer shall now be:
      

      Code Block
      title Answer if system is not vulnerable
      usage: sudoedit [-AknS] [-r role] [-t type] [-C num] [-g group] [-h host] [-p prompt] [-T timeout] [-u user] file ...