Users login

Create an account »

JOIN XATRIX

Users login

Home » Security Advisories» Ubuntu » NSS vulnerabilities

NSS vulnerabilities

  • Vendor: Ubuntu
  • Vendor ID: USN-3270-1
  • Date: April 27, 2017


==========================================================================
Ubuntu Security Notice USN-3270-1
April 27, 2017

nss vulnerabilities
==========================================================================

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:

Several security issues were fixed in NSS.

Software Description:
- nss: Network Security Service library

Details:

Karthik Bhargavan and Gaetan Leurent discovered that the DES and Triple DES
ciphers were vulnerable to birthday attacks. A remote attacker could
possibly use this flaw to obtain clear text data from long encrypted
sessions. This update causes NSS to limit use of the same symmetric key.
(CVE-2016-2183)

It was discovered that NSS incorrectly handled Base64 decoding. A remote
attacker could use this flaw to cause NSS to crash, resulting in a denial
of service, or possibly execute arbitrary code. (CVE-2017-5461)

This update refreshes the NSS package to version 3.28.4 which includes
the latest CA certificate bundle.

Update instructions:

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

Ubuntu 17.04:
libnss3 2:3.28.4-0ubuntu0.17.04.1

Ubuntu 16.10:
libnss3 2:3.28.4-0ubuntu0.16.10.1

Ubuntu 16.04 LTS:
libnss3 2:3.28.4-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
libnss3 2:3.28.4-0ubuntu0.14.04.1

This update uses a new upstream release, which includes additional bug
fixes. 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:
http://www.ubuntu.com/usn/usn-3270-1
CVE-2016-2183, CVE-2017-5461

Package Information:
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.17.04.1
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.10.1
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.14.04.1


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20170427/9af45ed6/attachment.pgp>

Newsletter signup

Signup to our monthly newsletter and stay in touch with IT news!

Free E-books

We've got ebooks! But they're not online. :( Please give us a few days to bring downloads back.

Contact

Have something to say or just wanna drop us a line? Please keep this in mind: to spam, we reply with spam.

Contact us »