ESB-2020.2716 – [Ubuntu] ppp: Execute arbitrary code/commands – Existing account

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2716
                       USN-4451-2: ppp vulnerability
                               7 August 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           ppp
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-15704  

Reference:         ESB-2020.2673

Original Bulletin: 
   https://usn.ubuntu.com/4451-2/

- --------------------------BEGIN INCLUDED TEXT--------------------

USN-4451-2: ppp vulnerability
06 August 2020

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

  o Ubuntu 14.04 ESM
  o Ubuntu 12.04 ESM

Packages

  o 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.

Update instructions

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

Ubuntu 14.04

  o ppp - 2.4.5-5.1ubuntu2.3+esm2

Ubuntu 12.04

  o ppp - 2.4.5-5ubuntu1.4

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

References

  o CVE-2020-15704

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=hx6d
-----END PGP SIGNATURE-----

Read More

https://www.malwaredevil.com/2020/08/07/esb-2020-2716-ubuntu-ppp-execute-arbitrary-code-commands-existing-account/?utm_source=rss&utm_medium=rss&utm_campaign=esb-2020-2716-ubuntu-ppp-execute-arbitrary-code-commands-existing-account