===========================================================================
Ubuntu Security Notice USN-3337-1
June 21, 2017

valgrind vulnerabilities
===========================================================================

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

- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Valgrind could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- valgrind: instrumentation framework for building dynamic analysis tools

Details:

It was discovered that Valgrind incorrectly handled certain string
operations. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could possibly execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04
LTS and Ubuntu 16.10. (CVE-2016-2226)

It was discovered that Valgrind incorrectly handled parsing certain
binaries. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could use this issue to cause
Valgrind to crash, resulting in a denial of service. (CVE-2016-4487,
CVE-2016-4488, CVE-2016-4489, CVE-2016-4490, CVE-2016-4491, CVE-2016-4492,
CVE-2016-4493, CVE-2016-6131)

Update instructions:

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

Ubuntu 17.04:
  valgrind                        1:3.12.0-1ubuntu1.1

Ubuntu 16.10:
  valgrind                        1:3.12.0~svn20160714-1ubuntu2.1

Ubuntu 16.04 LTS:
  valgrind                        1:3.11.0-1ubuntu4.2

Ubuntu 14.04 LTS:
  valgrind                        1:3.10.1-1ubuntu3~14.5

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

References:
  https://www.ubuntu.com/usn/usn-3337-1
  CVE-2016-2226, CVE-2016-4487, CVE-2016-4488, CVE-2016-4489,
  CVE-2016-4490, CVE-2016-4491, CVE-2016-4492, CVE-2016-4493,
  CVE-2016-6131

Package Information:
  https://launchpad.net/ubuntu/+source/valgrind/1:3.12.0-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/valgrind/1:3.12.0~svn20160714-1ubuntu2.1
  https://launchpad.net/ubuntu/+source/valgrind/1:3.11.0-1ubuntu4.2
  https://launchpad.net/ubuntu/+source/valgrind/1:3.10.1-1ubuntu3~14.5



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