Ubuntu Security Notice USN-4451-1 ≈ Packet Storm
Ubuntu Security Notice USN-4451-1
August 04, 2020
ppp vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
ppp could be made to load arbitrary kernel modules and possibly run
programs.
Software Description:
- ppp: Point-to-Point Protocol (PPP)
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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
ppp 2.4.7-2+4.1ubuntu5.1
Ubuntu 18.04 LTS:
ppp 2.4.7-2+2ubuntu1.3
Ubuntu 16.04 LTS:
ppp 2.4.7-1+2ubuntu1.16.04.3
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4451-1
CVE-2020-15704
Package Information:
https://launchpad.net/ubuntu/+source/ppp/2.4.7-2+4.1ubuntu5.1
https://launchpad.net/ubuntu/+source/ppp/2.4.7-2+2ubuntu1.3
https://launchpad.net/ubuntu/+source/ppp/2.4.7-1+2ubuntu1.16.04.3
Gloss