USN-2798-1 Linux kernel vulnerability

Medium

Vendor

Vivid

Versions Affected

• Ubuntu 14.04

Description

It was discovered that in certain situations, a directory could be renamed outside of a bind mounted location. An attacker could use this to escape bind mount containment and gain access to sensitive information. (CVE-2015-2925)

Moein Ghasemzadeh discovered that the USB WhiteHEAT serial driver contained hardcoded attributes about the USB devices. An attacker could construct a fake WhiteHEAT USB device that, when inserted, causes a denial of service (system crash). (CVE-2015-5257)

The Cloud Foundry project released a BOSH stemcell version 3126 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 3126 have versions of the kernel vulnerable to USN-2798-1.

Mitigation

Users of affected versions should apply the following mitigation:

• The Cloud Foundry project recommends that Cloud Foundry deployments run with BOSH stemcells 3126 or later versions.

Credit

Moein Ghasemzadeh

References

• <http://www.ubuntu.com/usn/usn-2798-1&gt;
• <https://bosh.io/stemcells&gt;
• <https://github.com/cloudfoundry/cf-release&gt;