Ubuntu Security Notice 3898-1 - Hanno BAPck 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.
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Ubuntu Security Notice USN-3898-1
February 27, 2019
nss vulnerability
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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 BAPck 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