==========================================================================
Ubuntu Security Notice USN-4203-2
November 27, 2019

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

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

– Ubuntu 14.04 ESM
– Ubuntu 12.04 ESM

Summary:

NSS could be made to crash or run programs if it received specially crafted
input.

Software Description:
– nss: Network Security Service library

Details:

USN-4203-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that NSS incorrectly handled certain memory operations. A
remote attacker could use this issue to cause NSS to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 14.04 ESM:
libnss3 2:3.28.4-0ubuntu0.14.04.5+esm2

Ubuntu 12.04 ESM:
libnss3 2:3.28.4-0ubuntu0.12.04.5

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/4203-2
https://usn.ubuntu.com/4203-1
CVE-2019-11745
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==========================================================================
Ubuntu Security Notice USN-4203-1
November 27, 2019

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

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

– Ubuntu 19.10
– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS

Summary:

NSS could be made to crash or run programs if it received specially crafted
input.

Software Description:
– nss: Network Security Service library

Details:

It was discovered that NSS incorrectly handled certain memory operations. A
remote attacker could use this issue to cause NSS to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 19.10:
libnss3 2:3.45-1ubuntu2.1

Ubuntu 19.04:
libnss3 2:3.42-1ubuntu2.3

Ubuntu 18.04 LTS:
libnss3 2:3.35-2ubuntu2.5

Ubuntu 16.04 LTS:
libnss3 2:3.28.4-0ubuntu0.16.04.8

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/4203-1
CVE-2019-11745

Package Information:
https://launchpad.net/ubuntu/+source/nss/2:3.45-1ubuntu2.1
https://launchpad.net/ubuntu/+source/nss/2:3.42-1ubuntu2.3
https://launchpad.net/ubuntu/+source/nss/2:3.35-2ubuntu2.5
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.8

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