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USN-3119-1: Bind vulnerability

By: | December 14, 2016

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USN-3119-1: Bind vulnerability

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 14.04 LTS

Description

Bind could be made to crash if it received specially crafted network traffic.

Tony Finch and Marco Davids discovered that Bind incorrectly handled certain responses containing a DNAME answer. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service.

Affected Products and Versions

Severity is medium unless otherwise noted.

  • Cloud Foundry BOSH stemcells are vulnerable, including:
    • All versions prior to 3151.5
    • 3233.x versions prior to 3233.6
    • 3263.x versions prior to 3263.12
    • 3312.x versions prior to 3312.7
    • All other versions
  • All versions of Cloud Foundry cflinuxfs2 prior to v.1.90.0

Mitigation

Users of affected versions should apply the following mitigation:

  • The Cloud Foundry team recommends upgrading to the following BOSH stemcells:
    • Upgrade all lower versions of 3151.x to version 3151.5
    • Upgrade all lower versions of 3233.x to version 3233.6
    • Upgrade all lower versions of 3263.x to version 3263.12
    • Upgrade all lower versions of 3312.x to version 3312.7
  • The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 v.1.90.0 or later versions

Credit

Tony Finch, Marco Davids

References

  • https://www.ubuntu.com/usn/usn-3119-1
  • http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-8864
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