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Ubuntu Security Notice USN-3894-1
February 26, 2019

gnome-keyring vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

GNOME Keyring could be made to expose sensitive information.

Software Description:
- gnome-keyring: GNOME keyring services

Details:

It was discovered that GNOME Keyring incorrectly cleared out credentials
supplied to the PAM module. A local attacker could possibly use this issue
to discover login credentials.

Update instructions:

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

Ubuntu 16.04 LTS:
  gnome-keyring                   3.18.3-0ubuntu2.1
  libpam-gnome-keyring            3.18.3-0ubuntu2.1

Ubuntu 14.04 LTS:
  gnome-keyring                   3.10.1-1ubuntu4.4
  libpam-gnome-keyring            3.10.1-1ubuntu4.4

After a standard system update you need to restart your session to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3894-1
  CVE-2018-20781

Package Information:
  https://launchpad.net/ubuntu/+source/gnome-keyring/3.18.3-0ubuntu2.1
  https://launchpad.net/ubuntu/+source/gnome-keyring/3.10.1-1ubuntu4.4