ESB-2018.3525 - [Win][UNIX/Linux][Ubuntu] pyOpenSSL: Multiple vulnerabilities 2018-11-09

Printable version
PGP/GPG verifiable version

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

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

                               ESB-2018.3525
                pyOpenSSL vulnerabilities patched in Ubuntu
                              9 November 2018

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

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

Product:           pyOpenSSL
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000808 CVE-2018-1000807 

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3813-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running pyOpenSSL check for an updated version of the software for 
         their operating system.

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

==========================================================================
Ubuntu Security Notice USN-3813-1
November 08, 2018

pyopenssl vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in pyOpenSSL.

Software Description:
- - pyopenssl: Python wrapper around the OpenSSL library

Details:

It was discovered that pyOpenSSL incorrectly handled memory when handling
X509 objects. A remote attacker could use this issue to cause pyOpenSSL to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2018-1000807)

It was discovered that pyOpenSSL incorrectly handled memory when performing
operations on a PKCS #12 store. A remote attacker could possibly use this
issue to cause pyOpenSSL to consume resources, resulting in a denial of
service. (CVE-2018-1000808)

Update instructions:

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

Ubuntu 16.04 LTS:
  python-openssl                  0.15.1-2ubuntu0.2
  python3-openssl                 0.15.1-2ubuntu0.2

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

References:
  https://usn.ubuntu.com/usn/usn-3813-1
  CVE-2018-1000807, CVE-2018-1000808

Package Information:
  https://launchpad.net/ubuntu/+source/pyopenssl/0.15.1-2ubuntu0.2

- --------------------------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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=75GG
-----END PGP SIGNATURE-----

« Back to bulletins