==========================================================================
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 Böck 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

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—

==========================================================================
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 Böck 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-----BEGIN PGP SIGNATURE-----
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