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Security Advisory

USN-4049-3: GLib regression

USN-4049-3: GLib regression




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 16.04


USN-4049-1 fixed a vulnerability in GLib. The update introduced a regression in Ubuntu 16.04 LTS causing a possible memory leak. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that GLib created directories and files without properly restricting permissions. An attacker could possibly use this issue to access sensitive information.

CVEs contained in this USN include: CVE-2019-13012

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • Cloud Foundry BOSH xenial-stemcells are vulnerable, including:
    • 456.x versions prior to 456.12
    • 315.x versions prior to 315.81
    • 250.x versions prior to 250.93
    • 170.x versions prior to 170.118
    • 97.x versions prior to 97.143
    • All other stemcells not listed.


Users of affected products are strongly encouraged to follow one of the mitigations below:

  • The Cloud Foundry project recommends upgrading the following BOSH xenial-stemcells:
    • Upgrade 456.x versions to 456.12
    • Upgrade 315.x versions to 315.81
    • Upgrade 250.x versions to 250.93
    • Upgrade 170.x versions to 170.118
    • Upgrade 97.x versions to 97.143
    • All other stemcells should be upgraded to the latest version available on


Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR