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Ubuntu Security Notice USN-3454-2

Ubuntu Security Notice USN-3454-2
Posted Oct 24, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3454-2 - USN-3454-1 fixed a vulnerability in libffi. This update provides the corresponding update for Ubuntu 12.04 ESM.  It was discovered that libffi incorrectly enforced an executable stack. An attacker could possibly use this issue, in combination with another vulnerability, to facilitate executing arbitrary code.

tags | advisory, arbitrary
systems | linux, ubuntu
MD5 | 4ed75fcd920472183eeaa15c68967066

Ubuntu Security Notice USN-3454-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3454-2
October 24, 2017

libffi vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 ESM

Summary:

A security issue was fixed in libffi.

Software Description:
- libffi: Foreign Function Interface library (development files, 32bit)

Details:

USN-3454-1 fixed a vulnerability in libffi. This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

A It was discovered that libffi incorrectly enforced an executable A
A stack. An attacker could possibly use this issue, in combination with
A another vulnerability, to facilitate executing arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 ESM:
A libffi6A A A A A A A A A A A A A A A A A A A A A A A A A 3.0.11~rc1-5ubuntu0.1

In general, a standard system update will make all the necessary
changes.

References:
A https://www.ubuntu.com/usn/usn-3454-2
A https://www.ubuntu.com/usn/usn-3454-1
A CVE-2017-1000376

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