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Security Advisory

USN-2718-1 Address Configuration Change Vulnerabilities

USN-2718-1 Address Configuration Change Vulnerabilities

Severity

Medium

Vendor

Vivid

Versions Affected

  • Ubuntu 14.04

Description

Marcelo Ricardo Leitner discovered a race condition in the Linux kernel’s SCTP address configuration lists when using Address Configuration Change (ASCONF) options on a socket. An unprivileged local user could exploit this flaw to cause a denial of service (system crash).

The Cloud Foundry project released a BOSH stemcell version 3048 that has the patched version of OpenSSH.

Affected Products and Versions

Severity is medium unless otherwise noted.

  • All versions of Cloud Foundry BOSH stemcells prior to 3048 have versions of the kernel vulnerable to USN-2718-1

Mitigation

Users of affected versions should apply the following mitigation:

  • The Cloud Foundry project recommends that Cloud Foundry deployments run with BOSH stemcells 3048 or later versions.

Credit

Marcelo Ricardo Leitner

References

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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