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Security Advisory

USN-2829-1 Linux kernel vulnerability

USN-2829-1 Linux kernel vulnerability

Severity

Medium

Vendor

Linux kernel

Versions Affected

  • Ubuntu 14.04

Description

It was discovered that the SCTP protocol implementation in the Linux kernel performed an incorrect sequence of protocol-initialization steps. A local attacker could use this to cause a denial of service (system crash). (CVE-2015-5283)

Dmitry Vyukov discovered that the Linux kernel’s keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2015-7872)

The Cloud Foundry project released a BOSH stemcell version 3146.1 and 3149 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 3149 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 3149 or later versions, or patched 3146.x versions.

Credit

Dmitry Vyukov

References

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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