ESB-2019.0619 - [Win][UNIX/Linux][Ubuntu] libnss3: Denial of service - Remote/unauthenticated 2019-02-28

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0619
                             NSS vulnerability
                             28 February 2019

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

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

Product:           libnss3
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-18508  

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3898-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running libnss3 check for an updated version of the software for 
         their operating system.

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==========================================================================
Ubuntu Security Notice USN-3898-1
February 27, 2019

nss vulnerability
==========================================================================

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

- - Ubuntu 18.10
- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

NSS could be made to crash if it received specially crafted network
traffic.

Software Description:
- - nss: Network Security Service library

Details:

Hanno Bock and Damian Poddebniak discovered that NSS incorrectly handled
certain CMS functions. A remote attacker could possibly use this issue to
cause NSS to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 18.10:
  libnss3                         2:3.36.1-1ubuntu1.2

Ubuntu 18.04 LTS:
  libnss3                         2:3.35-2ubuntu2.2

Ubuntu 16.04 LTS:
  libnss3                         2:3.28.4-0ubuntu0.16.04.5

Ubuntu 14.04 LTS:
  libnss3                         2:3.28.4-0ubuntu0.14.04.5

After a standard system update you need to restart any applications that
use NSS, such as Evolution, to make all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3898-1
  CVE-2018-18508

Package Information:
  https://launchpad.net/ubuntu/+source/nss/2:3.36.1-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/nss/2:3.35-2ubuntu2.2
  https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.5
  https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.14.04.5

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

==========================================================================
Ubuntu Security Notice USN-3898-2
February 27, 2019

nss vulnerability
==========================================================================

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

- - Ubuntu 12.04 ESM

Summary:

NSS could be made to crash if it received specially crafted network
traffic.

Software Description:
- - nss: Network Security Service library

Details:

USN-3898-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 Hanno Bock and Damian Poddebniak discovered that NSS incorrectly
 handled certain CMS functions. A remote attacker could possibly use
 this issue to cause NSS to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 12.04 ESM:
 libnss3                         2:3.28.4-0ubuntu0.12.04.3

After a standard system update you need to restart any applications
that use NSS, such as Evolution, to make all the necessary changes.

References:
 https://usn.ubuntu.com/usn/usn-3898-2
 https://usn.ubuntu.com/usn/usn-3898-1
 CVE-2018-18508

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