USN-3336-1: NSS vulnerability
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
Source: USN-3336-1: NSS vulnerability
