rsync vulnerabilities

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

* Ubuntu 18.04 LTS
* Ubuntu 16.04 LTS

Summary

Several security issues were fixed in rsync.

Software Description

* rsync - fast, versatile, remote (and local) file-copying tool

Details

It was discovered that rsync incorrectly handled pointer
arithmetic in zlib. An attacker could use this issue to cause
rsync to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2016-9840, CVE-2016-9841)

It was discovered that rsync incorrectly handled vectors involving
left shifts of negative integers in zlib. An attacker could use
this issue to cause rsync to crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2016-9842)

It was discovered that rsync incorrectly handled vectors involving
big-endian CRC calculation in zlib. An attacker could use this
issue to cause rsync to crash, resulting in a denial of service,
or possibly execute arbitrary code. (CVE-2016-9843)

Update instructions

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

Ubuntu 18.04 LTS
rsync - 3.1.2-2.1ubuntu1.1

Ubuntu 16.04 LTS
rsync - 3.1.1-3ubuntu1.3

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* CVE-2016-9840
* CVE-2016-9841
* CVE-2016-9842
* CVE-2016-9843

--- Mystic BBS v1.12 A45 (Linux/64)
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