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USN-3132-1: tar vulnerability

By: | December 14, 2016

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USN-3132-1: tar vulnerability

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 14.04 LTS

Description

Harry Sintonen discovered that tar incorrectly handled extracting files when path names are specified on the command line. If a user or automated system were tricked into processing a specially crafted archive, an attacker could possibly overwrite arbitrary files.

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.1.92.0

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.1.92.0 or later versions

Credit

Harry Sintonen

References

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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