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Ubuntu 16.04 ESM & 14.04 ESM USN-5252-2: PolicyKit Admin Privilege Risk

ubuntu
Calendar Grey January 25, 2022
Dist Ubuntu Esm H88
Uncover the recent vulnerability in PolicyKit outlined in Ubuntu Security Notice USN-5252-2, which poses risks to privilege elevation.
policykit-1 could be made to run programs as an administrator.

Summary

policykit-1 could be made to run programs as an administrator.

Software Description:

- policykit-1: framework for managing administrative policies and privileges

Details:

USN-5252-1 fixed a vulnerability in policykit-1. This update provides

the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that the PolicyKit pkexec tool incorrectly handled

command-line arguments. A local attacker could use this issue to escalate

privileges to an administrator.

Topics%20covered

Topics Covered

security advisory security issue ubuntu escalation policykit administrator privileges

Update Instructions

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

Ubuntu 16.04 ESM:
  policykit-1                     0.105-14.1ubuntu0.5+esm1

Ubuntu 14.04 ESM:
  policykit-1                     0.105-4ubuntu3.14.04.6+esm1

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

References

https://ubuntu.com/security/notices/USN-5252-2

https://ubuntu.com/security/notices/USN-5252-1

CVE-2021-4034

Severity
important
Lowest
Low
Medium
High
Critical

January 25, 2022

Topics%20covered

Topics Covered

security advisory security issue ubuntu escalation policykit administrator privileges

Package Information

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