[USN-4252-1] tcpdump vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-4252-1
January 27, 2020

tcpdump 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 tcpdump.

Software Description:
- tcpdump: command-line network traffic analyzer

Details:

Multiple security issues were discovered in tcpdump. A remote attacker
could use these issues to cause tcpdump to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
tcpdump 4.9.3-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
tcpdump 4.9.3-0ubuntu0.16.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
https://usn.ubuntu.com/4252-1
CVE-2017-16808, CVE-2018-10103, CVE-2018-10105, CVE-2018-14461,
CVE-2018-14462, CVE-2018-14463, CVE-2018-14464, CVE-2018-14465,
CVE-2018-14466, CVE-2018-14467, CVE-2018-14468, CVE-2018-14469,
CVE-2018-14470, CVE-2018-14879, CVE-2018-14880, CVE-2018-14881,
CVE-2018-14882, CVE-2018-16227, CVE-2018-16228, CVE-2018-16229,
CVE-2018-16230, CVE-2018-16300, CVE-2018-16451, CVE-2018-16452,
CVE-2018-19519, CVE-2019-1010220, CVE-2019-15166, CVE-2019-15167

Package Information:
https://launchpad.net/ubuntu/+source/tcpdump/4.9.3-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/tcpdump/4.9.3-0ubuntu0.16.04.1