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Ubuntu: USN-4451-2 Moderate: ppp Kernel Module Code Execution

ubuntu
Calendar Grey August 6, 2020
Scroller Ubuntu
The Ubuntu Security Notice USN-4500-1 highlights a vulnerability in the gdm package that permits unauthorized access to system resources and potential escalation of privileges.
ppp could be made to load arbitrary kernel modules and possibly run programs.

Summary

ppp could be made to load arbitrary kernel modules and possibly run

programs.

Software Description:

- ppp: Point-to-Point Protocol (PPP)

Details:

USN-4451-1 fixed a vulnerability in ppp. This update provides

the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

Thomas Chauchefoin discovered that ppp incorrectly handled module loading.

A local attacker could use this issue to load arbitrary kernel modules and

possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory moderate code execution Ubuntu local attack kernel modules ppp

Update Instructions

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

Ubuntu 14.04 ESM:
  ppp                             2.4.5-5.1ubuntu2.3+esm2

Ubuntu 12.04 ESM:
  ppp                             2.4.5-5ubuntu1.4

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

References

https://ubuntu.com/security/notices/USN-4451-2

https://ubuntu.com/security/notices/USN-4451-1

CVE-2020-15704

Severity
important
Lowest
Low
Medium
High
Critical

August 06, 2020

Topics%20covered

Topics Covered

security advisory moderate code execution Ubuntu local attack kernel modules ppp

Package Information

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