[USN-3543-2] rsync vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3543-2
January 23, 2018

rsync vulnerabilities
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in rsync.

Software Description:
- rsync: fast, versatile, remote (and local) file-copying tool

Details:

USN-3543-1 fixed vulnerabilities in rsync. This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 It was discovered that rsync incorrectly handled certain data input.
 An attacker could possibly use this to cause a denial of service or
 execute arbitrary code. (CVE-2017-16548)

 It was discovered that rsync incorrectly parsed certain arguments. An
 attacker could possibly use this to bypass arguments and execute
 arbitrary code. (CVE-2018-5764)

Update instructions:

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

Ubuntu 12.04 ESM:
  rsync                           3.0.9-1ubuntu1.3

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

References:
  https://www.ubuntu.com/usn/usn-3543-2
  https://www.ubuntu.com/usn/usn-3543-1
  CVE-2017-16548, CVE-2018-5764
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