Ubuntu Security Update USN-3336-1: NSS vulnerability

[LinuxBot]

Ubuntu Security Notice USN-3336-1


21st June, 2017

nss vulnerability


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

• Ubuntu 17.04
• Ubuntu 16.10
• 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


It was discovered that NSS incorrectly handled certain empty SSLv2
messages. 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 version:

Ubuntu 17.04:
libnss3 2:3.28.4-0ubuntu0.17.04.2
Ubuntu 16.10:
libnss3 2:3.28.4-0ubuntu0.16.10.2
Ubuntu 16.04 LTS:
libnss3 2:3.28.4-0ubuntu0.16.04.2
Ubuntu 14.04 LTS:
libnss3 2:3.28.4-0ubuntu0.14.04.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References


CVE-2017-7502

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