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Security Advisory

USN-2836-1 grub2 vulnerability

USN-2836-1 grub2 vulnerability

Severity

Medium

Vendor

grub2

Versions Affected

  • Ubuntu 14.04

Description

Hector Marco and Ismael Ripoll discovered that GRUB incorrectly handled the backspace key when configured to use authentication. A local attacker could use this issue to bypass GRUB password protection.

The Cloud Foundry project released a BOSH stemcell version 3146.1 and 3156 that has the patched version of the Linux kernel.

Affected Products and Versions

Severity is medium unless otherwise noted.

  • All versions of Cloud Foundry BOSH stemcells prior to 3156 are vulnerable, besides patched versions of 3146.x.

Mitigation

Users of affected versions should apply the following mitigation:

  • The Cloud Foundry project recommends that Cloud Foundry deployments run with BOSH stemcells 3156 or later versions, or patched 3146.x versions.

Credit

Hector Marco and Ismael Ripoll

References

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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